Two people are walking along a long cannon on a tank.
Some people are walking on a tank.
if the two people are walking on a tank, then they are some people.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_tank(x3) & along(e1,x2) & n_cannon(x2) & a_long(s1) & Theme(s1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2.(on(e1,x2) & n_tank(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))