A man and a woman are coming down an escalator.
A married couple shops at the mall.
man and woman doesn't mean married couple and escalator doesn't mean shops at mall
exists e1 s1 x1 x2 x3 x4.(n_escalator(x4) & Time(e1,x4) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_come(e1) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
exists s1 x1 x2 x3.(n_mall(x3) & a_topic(x1) & at(x1,x3) & n_shop(x1) & of(x1,x2) & n_couple(x2) & a_married(s1) & Theme(s1,x1))