Two boy put their hands together while another boy goes under their hands.
The boys are learning a dance.
This does not imply learning a dance. If anything it implies learning a secret handshake.
exists e1 p1 s1 x1 x2.(exists e2 x3.(under(e2,x2) & Actor(e2,x3) & v_go(e2) & n_boy(x3) & -(x3 = x1)) & n_hand(x2) & n_hand(x2) & of(x2,x1) & n_thing(x1) & n_thing(x1) & n_boy(x1) & n_boy(x1) & while(e1,p1) & a_together(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_put(e1) & card_eq_2(x1))
exists e1 x1 x2.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_learn(e1) & n_dance(x2))