.. index:: single: RO_0000057; has participant single: has participant; RO_0000057 RO_0000057 - has participant ==================================================================================== .. topic:: Label has participant .. topic:: Editor preferred label has participant .. topic:: Sub property of http://www.w3.org/2002/07/owl#topObjectProperty .. topic:: Definition A relation between a process and a continuant, in which the continuant is somehow involved in the process .. topic:: Example this investigation has participant this investigator this blood coagulation has participant this blood clot this process has participant this input material (or this output material) .. topic:: Editor's note Has_participant is a primitive instance-level relation between a process, a continuant, and a time at which the continuant participates in some way in the process. The relation obtains, for example, when this particular process of oxygen exchange across this particular alveolar membrane has_participant this particular sample of hemoglobin at this particular time. .. topic:: Imported from http://purl.obolibrary.org/obo/ro/releases/2020-12-18/ro.owl