A little girl happily jumping on a bed.
the girl jumps on the bed before dinner
We don't know that the girl jumps on the before dinner, we don't know what time of day it is.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & a_happily(s2) & Manner(e1,s2) & on(e1,x3) & n_bed(x3) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_girl(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_bed(x2) & n_girl(x1) & before(e1,x3) & n_dinner(x3) & on(e1,x2) & Actor(e1,x1) & v_jump(e1))