OBO Relationship List

• is a
• part of
• has part
• integral part of
• has integral part
• proper part of
• has proper part
• located in
• location of
• contained in
• contains
• adjacent to
• transformation of
• transformed into
• derives from
• derived into
• preceded by
• precedes
• has participant
• participates in
• has agent
• agent in
• instance of
• has improper part
• improper part of
• relationship