Three people going up an escalator and a man with a shopping cart coming down the escalator.
The people are standing in line
People cannot going up and coming down an escalator and standing in line simultaneously.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(Time(e2,x2) & n_escalator(x2) & n_escalator(x2) & a_down(s2) & Manner(e2,s2) & Actor(e2,x3) & v_come(e2) & with(x3,x4) & n_cart(x4) & of(x4,x5) & n_shopping(x5) & n_man(x3) & Time(e1,x2) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2.(n_people(x1) & in(e1,x2) & n_line(x2) & Actor(e1,x1) & v_stand(e1))