existence_starts_and_ends_during
x existence starts and ends during y if and only if the start of x is part of y and the end of x is part of y. Formally: x existence starts and ends during y iff α(x) >= α(y) & α(x) <= ω(y) & ω(x) <= ω(y) & ω(x) >= α(y)
RO:0002488
existence_starts_during
is_a
RO:0002492
existence_ends_during
is_a