Two men looking to be construction workers work in the sand.
Two men are flying in a hot air balloon while drinking smoothies.
Working in the sand suggest that you are working on the ground and this is the exact opposite of flying in a hot air balloon which is not on the ground but floating in the air.
exists e2 e1 p1 x1 x2 x3.(n_sand(x3) & in(e2,x3) & Actor(e2,x1) & v_work(e2) & Topic(e1,p1) & Actor(e1,x2) & v_look(e1) & exists p2 x4 x5.((x2 = x4) & n_worker(x4) & of(x4,x5) & n_construction(x5)) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e2 e1 s1 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_drink(e2) & n_smoothie(x4) & in(e1,x2) & n_balloon(x2) & of(x2,x3) & n_air(x3) & a_hot(s1) & Theme(s1,x2) & Actor(e1,x1) & v_fly(e1) & n_man(x1) & card_eq_2(x1))