Two children peek out.
The children are playing hide and go seek.
Just because children peek out doesn't necessarily imply playing hide and go seek.
exists e1 s1 x1.(a_out(s1) & Manner(e1,s1) & Actor(e1,x1) & v_peek(e1) & n_child(x1) & card_eq_2(x1))
exists e1 p1 x1.(n_child(x1) & exists e2 e3 s1.(a_seek(s1) & Manner(e3,s1) & Actor(e3,x1) & v_go(e3) & Actor(e2,x1) & v_hide(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_play(e1))