has_participant has participant has participant starts with starts with has input has input https://wiki.geneontology.org/Has_input consumes has_input has_input p has direct input c iff c is a participant in p, c is present at the start of p, and the state of c is modified during p. Chris Mungall external p has input c iff: p is a process, c is a material entity, c is a participant in p, c is present at the start of p, and the state of c is modified during p. RO:0002233 input of input of process process material entity material entity pending final vetting