A man is walking through a building while holding a small child's hand.
The guy and a kid are inside a building.
Just because a man and child are walking through a building doesn't mean they are inside the building as they could be going through an outdoor part of the building.
exists e2 e1 s1 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_hold(e2) & n_hand(x4) & of(x4,x3) & n_child(x3) & a_small(s1) & Theme(s1,x3) & through(e1,x2) & n_building(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists p1 x1 x2 x3.(n_guy(x2) & exists x4.(inside(x1,x4) & n_building(x4)) & subset_of(x3,x1) & n_kid(x3) & subset_of(x2,x1))