Man in a green shirt strums his mandolin while singing.
A man is playing a saxophone and dancing.
one man strums a mandolin while singing while the other man is playing a saxophone and dancing
exists e1 e2 s1 x1 x2 x3.(while(e1,e2) & Actor(e2,x1) & v_sing(e2) & Theme(e1,x3) & Actor(e1,x1) & v_strum(e1) & n_mandolin(x3) & of(x3,x1) & n_male(x1) & in(x1,x2) & n_shirt(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_dancing(x4) & n_saxophone(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_man(x1))