Two young boys are outside talking and are n't wearing shirts.
Two boys with shirts on minding their own business.
The boys cannot be wearing shirts and not wearing shirts at the same time.
exists s1 s2 s3 x1 x2 x3.(-exists e1 x4.(Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_shirt(x4)) & n_boy(x3) & a_young(s3) & Theme(s3,x3) & card_eq_2(x3) & Time(s2,x2) & n_talking(x2) & Theme(s2,x1) & a_outside(s2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_mind(e1) & n_business(x4) & a_own(s1) & Theme(s1,x4) & of(x4,x1) & n_thing(x1) & (x2 = x3) & n_shirt(x2) & n_boy(x1) & card_eq_2(x1))