time; hour; period; class
to separate; to part; to divide; to keep apart
to reach the point that; to come to be that; to turn into
present; gift; to give a present or gift
exchange; interchange; switching; reciprocity; barter; substitution
promise; agreement; convention; rule; destiny; fate
state; state of affairs; appearance; look; sign; indication
how; in what way; how about
boy; bellboy; porter; waiter
older brother and younger sister
to be broken; to break; to fall through; to come to nothing