An ontology of core relations for use by OBO Foundry ontologies.
| Types Types : Summary Table |
| OBO Relations : Type level relations : Summary Table | |||||
| relation | transitive | symmetric | anti_symmetric | reflexive | holds_between |
|---|---|---|---|---|---|
| is_a | + | + | + | ||
| part_of | + | + | + | ||
| integral_part_of | + | + | + | ||
| has_integral_part | + | + | + | ||
| proper_part_of | + | ||||
| located_in | + | + | |||
| contained_in | |||||
| contains | |||||
| adjacent_to | |||||
| transformation_of | + | ||||
| derives_from | + | ||||
| preceded_by | + | ||||
| has_participant | |||||
| has_agent | |||||
| inheres_in | |||||
| quality_of | |||||
| function_of | |||||
| role_of | |||||
| realized_by | |||||
| occurs_in_some | |||||
| overlaps | + | ||||
| relation | transitive | symmetric | anti_symmetric | reflexive | holds_between |
| OBO Relations : Instance level relations : Summary Table | |||||
| relation | transitive | symmetric | anti_symmetric | reflexive | holds_between |
|---|---|---|---|---|---|
| part_of | + | + | + | continuant and continuant temporal occurrent and occurrent atemporal | |
| proper_part_of | + | ||||
| located_in | + | + | continuant and independent_continuant | ||
| contained_in | independent_continuant and independent_continuant | ||||
| adjacent_to | + | independent_continuant and independent_continuant | |||
| derives_from | + | continuant and continuant | |||
| preceded_by | + | occurrent and occurrent | |||
| precedes | + | occurrent and occurrent | |||
| has_participant | occurrent and continuant temporal | ||||
| has_agent | |||||
| instance_of | |||||
| inheres_in | dependent_continuant and entity temporal | ||||
| quality_of | quality and | ||||
| function_of | function and independent_continuant | ||||
| role_of | role and independent_continuant | ||||
| realized_by | realizable_entity and process | ||||
| exists_at | continuant and temporal_instant | ||||
| occurs_at | occurrent and temporal_instant | ||||
| first_instant_of | |||||
| last_instant_of | |||||
| immediately_preceded_by | |||||
| has_duration | occurrent and temporal_interval | ||||
| occurs_in | |||||
| overlaps | + | + | independent_continuant and independent_continuant | ||
| partially_overlaps | independent_continuant and independent_continuant | ||||
| underlaps | + | + | independent_continuant and independent_continuant | ||
| earlier_than | + | temporal_instant and temporal_instant | |||
| relation | transitive | symmetric | anti_symmetric | reflexive | holds_between |
obo
Both class and instance level relations are available in .obo format
Importing RO into your ontology: INSTRUCTIONS HEREkif
The RO is expressed as first-order logic axioms. These are currently expressed using a subset of FOL using the KIF syntax. Eventually this will be replaced with CLIF/CL-XML.
owl
ro.owl Only the instance level relations are converted to OWL. This ontology imports the OWL version of BFO.
prover9
Prover9 formulae are generated directly from the KIF axioms. Some axioms are expanded such that they can be used with Prover9/Mace4. For example
(symmetric overlaps)is expanded to
overlaps(x,y) -> overlaps(y,x)
- ro.prover9 -- the core RO
- bfo_ro.prover9 -- RO and BFO axioms combined
Relation Details
Note both class and instance level relations are listed here for completeness

