Young boys in red vests and bowties sing in a choir.
the young boys are talking
People cannot sing and be talking at the same time.
exists e1 s1 s2 x1 x2 x3 x4 x5.(in(e1,x5) & n_choir(x5) & Actor(e1,x1) & v_sing(e1) & in(x1,x2) & subset_of(x4,x2) & n_bowty(x4) & subset_of(x3,x2) & n_vest(x3) & a_red(s2) & Theme(s2,x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1.(n_boy(x1) & a_young(s1) & Theme(s1,x1) & Actor(e1,x1) & v_talk(e1))