A man is smiling while working the mixing board as he DJ s.
The man is listening to music.
A DJ is always listening to music while working.
exists e2 e1 e3 p1 x1 x2.(n_board(x2) & Actor(e2,x2) & v_mix(e2) & n_male(x2) & while(e1,e3) & Theme(e3,x2) & Actor(e3,x1) & v_work(e3) & exists e4 x3.(Actor(e4,x2) & v_s(e4) & on(x2,x3) & ne_tim_dj(x3)) & as(e1,p1) & Actor(e1,x1) & v_smile(e1) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & to(e1,x2) & n_music(x2) & Actor(e1,x1) & v_listen(e1))