part_of part of part of precedes precedes simultaneous_with simultaneous with developmentally succeeded by relation between physical entity and a process or stage existence ends during or before existence_ends_during_or_before x existence ends during or before y if and only if the time point at which x ends is before or equivalent to the time point at which y ends. The relations here were created based on work originally by Fabian Neuhaus and David Osumi-Sutherland. The work has not yet been vetted and errors in definitions may have occurred during transcription. uberon RO:0002497 existence_ends_during_or_before Chris Mungall