A person wearing a sweater looks at a spill on some brick steps outside.
A person notices that he has left his keys at home.
A person looking a spill cannot at the same time realize he has left his keys at home.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(a_outside(s1) & Manner(e2,s1) & at(e2,x4) & on(x4,x5) & n_step(x5) & of(x5,x6) & n_brick(x6) & n_spill(x4) & Actor(e2,x1) & v_look(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_sweater(x3) & (x1 = x2) & n_person(x1))
exists p1 x1 x2 x3.(a_topic(x1) & exists e1 x1 x4.(at(e1,x4) & n_home(x4) & Theme(e1,x3) & Actor(e1,x1) & v_leave(e1) & n_male(x1)) & n_key(x3) & of(x3,x1) & n_male(x1) & that(x1,p1) & Time(x1,x2) & n_notice(x2) & n_person(x1))