A man is sitting in the passenger seat of a red three-wheeled rickshaw.
A man is travelling by rickshaw.
Just because a man is sitting in a rickshaw does not mean that he is travelling by rickshaw, he could be sitting in a rickshaw for another reason.
exists e1 s1 s2 x1 x2 x3 x4.(n_seat(x2) & of(x2,x3) & n_passenger(x3) & in(e1,x2) & of(x2,x4) & n_rickshaw(x4) & a_three-wheeled(s2) & Theme(s2,x4) & a_red(s1) & Theme(s1,x4) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 x1 x2.(by(e1,x2) & n_rickshaw(x2) & Actor(e1,x1) & v_travel(e1) & n_man(x1))