premise: A woman walks by a brick building that's covered with graffiti.
hypothesis: The woman's son drew some of the graffiti.
explanation_1: The graffiti wasn't necessarily done by her son.
explanation_2: The fact that the woman has a son is new information. The fact that some of the graffiti she is looking at was drawn by her son is also new information.
explanation_3: Not all women have a son.
premise_logic: exists e2 e1 x1 x2 x3 x4 x5.(by(e1,x2) & with(e2,x5) & n_graffitus(x5) & Theme(e2,x4) & v_cover(e2) & (x2 = x4) & n_building(x2) & of(x2,x3) & n_brick(x3) & Actor(e1,x1) & v_walk(e1) & n_woman(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(n_graffitus(x4) & n_son(x2) & of(x2,x1) & n_woman(x1) & Theme(e1,x3) & Actor(e1,x2) & v_draw(e1) & of(x3,x4) & n_thing(x3))