The girl in yellow is laughing at the girl wearing orange whilst being watched by the girl in blue.
The girl in yellow is laughing at the girl wearing orange
The girl in yellow laughing at the girl wearing orange is part of the description of them whilst being watched by the girl in blue.
exists e2 e3 e1 x1 x2 x3 x4 x5 x6.(n_girl(x1) & n_girl(x1) & n_girl(x1) & n_whilst(x3) & of(x3,x4) & n_orange(x4) & Actor(e2,x3) & v_wear(e2) & of(x3,x1) & at(e1,x3) & Actor(e3,x1) & in(x1,x6) & n_blue(x6) & Theme(e3,x5) & v_watch(e3) & (x3 = x5) & Actor(e1,x1) & v_laugh(e1) & in(x1,x2) & n_yellow(x2))
exists e1 e2 x1 x2 x3 x4.(n_girl(x1) & n_girl(x1) & at(e1,x1) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & n_orange(x4) & (x1 = x3) & Actor(e1,x1) & v_laugh(e1) & in(x1,x2) & n_yellow(x2))