Men standing around talking on cellphones.
The men are talking on their cellphones outside.
Sentence 2 can refer to different men..
exists e1 e2 x1 x2 x3.(a_topic(x1) & around(e1,e2) & on(e2,x3) & n_cellphone(x3) & Actor(e2,x2) & v_talk(e2) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2.(n_cellphone(x2) & of(x2,x1) & n_thing(x1) & n_man(x1) & a_outside(s1) & Manner(e1,s1) & on(e1,x2) & Actor(e1,x1) & v_talk(e1))