A boy wearing dark clothes is lying on a red blanket at the opening of a tent.
A girl is riding the elephant.
The subject is either a boy or girl, and is either lying on a blanket or riding an elephant.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(n_opening(x5) & at(e2,x5) & of(x5,x6) & n_tent(x6) & on(e2,x4) & n_blanket(x4) & a_red(s2) & Theme(s2,x4) & Actor(e2,x1) & v_lie(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_clothes(x3) & a_dark(s1) & Theme(s1,x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2.(n_elephant(x2) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_girl(x1))