Two young boys are digging in the sand with their hands.
The two young boys are not using any tools to dig.
Digging in the sand with their hands implies that the two boys are not using any tools to dig
exists e1 s1 x1 x2 x3.(n_sand(x2) & n_hand(x3) & of(x3,x2) & n_thing(x2) & in(e1,x2) & with(e1,x3) & Actor(e1,x1) & v_dig(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists s1 x1.(n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1) & -all x2.(n_tool(x2) -> exists e1 p1.(Theme(e1,p1) & Recipient(e1,x2) & Actor(e1,x1) & v_use(e1) & exists e2.(Actor(e2,x1) & v_dig(e2)))))