A man talking on a cellphone smiles while walking in front of a large group of people in the city.
A man is singing into a microphone in the park by himself.
talking on a cellphone cant be done at the same time with singing into a microphone.
exists e1 e3 e2 s1 x1 x2 x3 x4 x5 x6 x7.(n_city(x7) & while(e2,e3) & in(e3,x4) & of(x4,x5) & of(x5,x6) & in(x6,x7) & n_people(x6) & n_group(x5) & a_large(s1) & Theme(s1,x5) & n_front(x4) & Actor(e3,x1) & v_walk(e3) & Actor(e2,x1) & v_smile(e2) & on(e1,x3) & n_cellphone(x3) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(n_park(x3) & into(e1,x2) & in(x2,x3) & by(x3,x1) & n_male(x1) & n_microphone(x2) & Actor(e1,x1) & v_sing(e1) & n_man(x1))