The man in the middle is studying seriously, while the other men relax.
A man is studying his notes as the others listen to music.
You can not infer he is studying.
exists e1 p1 s1 x1 x2.(-(x1 = x1) & n_man(x1) & n_man(x1) & n_middle(x2) & exists e2.(Actor(e2,x1) & v_relax(e2)) & while(e1,p1) & a_seriously(s1) & Manner(e1,s1) & Actor(e1,x1) & v_study(e1) & in(x1,x2))
exists e1 p1 x1 x2.(exists e2 x3.(to(e2,x3) & n_music(x3) & Actor(e2,x1) & v_listen(e2)) & -(x1 = x1) & n_person(x1) & as(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_study(e1) & n_note(x2) & of(x2,x1) & n_male(x1) & n_man(x1))