"existence starts during or after" . _:b1214677 . _:b1214667 . _:b1214670 . _:b1214668 . _:b1214675 . . _:b1214679 . _:b1214673 . _:b1214670 . _:b1214673 . _:b1214680 . _:b1214671 . _:b1214674 _:b1214673 . "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." . _:b1214674 . _:b1214676 _:b1214675 . _:b1214672 . _:b1214669 . _:b1214676 . _:b1214676 . _:b1214672 _:b1214671 . _:b1214679 _:b1214678 . _:b1214678 _:b1214677 . "Chris Mungall" . _:b1214667 . _:b1214668 . _:b1214670 _:b1214669 . _:b1214680 _:b1214679 . _:b1214674 . _:b1214680 . _:b1214672 . _:b1214668 _:b1214667 . _:b1214671 . _:b1214675 . "x existence starts during or after y if and only if the time point at which x starts is after or equivalent to the time point at which y starts. Formally: x existence starts during or after y iff \u03B1 (x) >= \u03B1 (y)." . . _:b1214678 . _:b1214669 .