| 
                                        acts upstream of or within, positive effect
                                     | 
                                    RO_0004032 | 
                                     | 
                                
                                
                                    | 
                                        acts upstream of, negative effect
                                     | 
                                    RO_0004035 | 
                                    [c 'acts upstream of, negative effect' p if c is enables f, and f is causally upstream of p, and the direction of f is negative] | 
                                
                                
                                    | 
                                        acts upstream of, positive effect
                                     | 
                                    RO_0004034 | 
                                    [c 'acts upstream of, positive effect' p if c is enables f, and f is causally upstream of p, and the direction of f is positive] | 
                                
                                
                                    | 
                                        added_for_HCA
                                     | 
                                    added_for_HCA | 
                                     | 
                                
                                
                                    | 
                                        added_for_HCA
                                     | 
                                    added_for_HCA | 
                                     | 
                                
                                
                                    | 
                                        adjacent to
                                     | 
                                    RO_0002220 | 
                                    [x adjacent_to y iff: x and y share a boundary., x adjacent to y if and only if x and y share a boundary.] | 
                                
                                
                                    | 
                                        alternative label
                                     | 
                                    IAO_0000118 | 
                                    [A label for a class or property that can be used to refer to the class or property instead of the preferred rdfs:label. Alternative labels should be used to indicate community- or context-specific labels, abbreviations, shorthand forms and the like.] | 
                                
                                
                                    | 
                                        anastomoses with
                                     | 
                                    anastomoses_with | 
                                     | 
                                
                                
                                    | 
                                        anterior_to
                                     | 
                                    BSPO_0000096 | 
                                    [x anterior_to y iff x is further along the antero-posterior axis than y, towards the head. An antero-posterior axis is an axis that bisects an organism from head end to opposite end of body or tail: bearer., x anterior to y iff x is further along the antero-posterior axis than y, towards the head. An antero-posterior axis is an axis that extends through an organism from head end to opposite end of body or tail.] | 
                                
                                
                                    | 
                                        anteriorly connected to
                                     | 
                                    anteriorly_connected_to | 
                                    [x anteriorly_connected_to y iff the anterior part of x is connected to y. i.e. x connected_to y and x posterior_to y.] | 
                                
                                
                                    | 
                                        antisymmetric property
                                     | 
                                    IAO_0000427 | 
                                    [Use boolean value xsd:true to indicate that the property is an antisymmetric property] | 
                                
                                
                                    | 
                                        attached to
                                     | 
                                    RO_0002371 | 
                                    [a is attached to b if and only if a and b are discrete objects or object parts, and there are physical connections between a and b such that a force pulling a will move b, or a force pulling b will move a] | 
                                
                                
                                    | 
                                        attached to part of
                                     | 
                                    RO_0002177 | 
                                    [a is attached to part of b if a is attached to b, or a is attached to some p, where p is part of b.] | 
                                
                                
                                    | 
                                        attribute_slim
                                     | 
                                    attribute_slim | 
                                     | 
                                
                                
                                    | 
                                        auto-generated-by
                                     | 
                                    auto-generated-by | 
                                     | 
                                
                                
                                    | 
                                        axon synapses in
                                     | 
                                    RO_0002102 | 
                                    [Relation between a neuron and some structure its axon forms (chemical) synapses in.] | 
                                
                                
                                    | 
                                        before or simultaneous with
                                     | 
                                    RO_0002081 | 
                                     | 
                                
                                
                                    | 
                                        biomechanically related to
                                     | 
                                    RO_0002567 | 
                                    [A relation that holds between elements of a musculoskeletal system or its analogs.] | 
                                
                                
                                    | 
                                        blast_name
                                     | 
                                    blast_name | 
                                     | 
                                
                                
                                    | 
                                        boundary_of
                                     | 
                                    RO_0002000 | 
                                    [a relation between a 2D immaterial entity (the boundary) and a material entity, in which the boundary delimits the material entity] |