Which relationships should we consider?

From HAO Wiki

Current relationships

• is_a (fore leg is_a leg)
• part_of (coxa part_of leg)
• exact_synonym (unguis exact_synonym tarsal claw)
• obsolete_synonym (euplantula obsolete_synonym tarsal plantula)

Potential relationships

See also ro.obo.

• has_part (gonoforceps has_part gonostipes) has_part example
• integral_part_of (testis integral_part_of male genitalia; be careful with this one!)
• has_integral_part (antenna has_integral_part scape; be careful with this one!)
• adjacent_to (scutum adjacent_to scutellum)
• develops_from (used for primordial structures? wing develops_from imaginal disc)
• not a (felt line not_a line)
• absent (wing absent larva)
• what about a relationship that informs on whether an object helps define something (e.g., subantennal suture defines (in part) the subantennal area)
• articulates_with (femur articulates with tibia)
• homologous_to (hind wing homologous_to haltere; would help connect other organismal ontologies) - examples here