Two people are riding a Yamaha on the beach.
People are sitting near the beach
People cannot be riding and sitting simultaneously
exists e1 x1 x2 x3.(n_beach(x3) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & ne_org_yamaha(x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_beach(x2) & near(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))