A woman out to dinner and drinks laughs hysterically while her friend uses her cellphone.
A woman is laughing at her friend.
JUST BECUASE SHE IS LAUGHING DOES NOT MEAN SHE IS LAUGHING AT HER FRIEND.
exists e1 p1 s1 x1 x2 x3 x4 x5 x6 x7.(exists e2 x1.(Theme(e2,x7) & Actor(e2,x6) & v_use(e2) & n_female(x1)) & n_cellphone(x7) & of(x7,x1) & n_friend(x6) & of(x6,x1) & n_female(x1) & while(e1,p1) & a_hysterically(s1) & Manner(e1,s1) & Actor(e1,x1) & v_laugh(e1) & to(x2,x3) & subset_of(x5,x3) & n_drink(x5) & subset_of(x4,x3) & n_dinner(x4) & out(x1,x2) & n_thing(x2) & n_woman(x1))
exists e1 x1 x2.(at(e1,x2) & n_friend(x2) & of(x2,x1) & n_female(x1) & Actor(e1,x1) & v_laugh(e1) & n_woman(x1))