_:b1214664 _:b1214663 . _:b1214665 . "x existence ends during y if and only if the time point at which x ends is before or equivalent to the time point at which y ends and after or equivalent to the point at which y starts. Formally: x existence ends during y iff \u03C9(x) <= \u03C9(y) and \u03C9(x) >= \u03B1(y)." . _:b1214666 _:b1214665 . . "Chris Mungall" . "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." . _:b1214666 . . _:b1214664 . _:b1214665 . _:b1214666 . "existence ends during" . _:b1214663 . _:b1214664 . _:b1214663 . .