A man plays his yellow guitar while staring at his cat.
A man was playing his guitar.
A man plays his yellow guitar is a rephrasing of a man was playing his guitar
exists e1 e2 s1 x1 x2 x3.(while(e1,e2) & at(e2,x3) & n_cat(x3) & of(x3,x1) & n_male(x1) & n_male(x1) & Actor(e2,x1) & v_stare(e2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & a_yellow(s1) & Theme(s1,x2) & of(x2,x1) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & of(x2,x1) & n_male(x1) & n_man(x1))