An older person and a young child walking together in front of a large building.
The young child is the person's grandson.
An older person and a child walking together does not imply that it is the older person's grandson.
exists e1 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & in(e1,x4) & of(x4,x5) & n_building(x5) & a_large(s5) & Theme(s5,x5) & n_front(x4) & a_together(s4) & Manner(e1,s4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_child(x2) & a_young(s3) & Theme(s3,x2) & subset_of(x1,s1) & n_person(x1) & r_more(s2) & a_older(s2) & Theme(s2,x1))
exists p1 s1 x1 x2 x3.(n_grandson(x3) & of(x3,x2) & n_person(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1) & (x1 = x3))