A young male is sipping on a juice.
The guy is drinking juice.
sipping is the same as drinking
exists e1 s1 x1 x2.(on(e1,x2) & n_juice(x2) & Actor(e1,x1) & v_sip(e1) & n_male(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_guy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_juice(x2))