An old man stands in front of a doorway.
A man is blocking people from entering his house.
Standing front of a doorway does not imply blocking people necessarily.
exists e1 s1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_doorway(x3) & n_front(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists e1 e2 x1 x2 x3 x4.(from(e1,e2) & Theme(e2,x4) & Actor(e2,x3) & v_enter(e2) & n_house(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_block(e1) & n_people(x2) & n_man(x1))