A man is bent over trying to pick up the pear.
The man is standing upright.
The man cannot be bent over and be upright simultaneously
exists e1 p1 s1 x1 x2.(n_pear(x2) & over(s1,e1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s2.(a_up(s2) & Manner(e2,s2) & Theme(e2,x2) & Actor(e2,x1) & v_pick(e2)) & Theme(s1,x1) & a_bent(s1) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & Time(e1,x2) & n_upright(x2) & Actor(e1,x1) & v_stand(e1))