The man is playing a stringed instrument on the ground.
An Asian man is playing an erhu while sitting on the ground.
The man need not be Asian and the instrument erhu
exists e1 s1 x1 x2 x3.(n_ground(x3) & n_man(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & a_stringed(s1) & Theme(s1,x2))
exists e1 e2 s1 x1 x2 x3.(n_ground(x3) & while(e1,e2) & on(e2,x3) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_erhu(x2) & n_man(x1) & a_asian(s1) & Theme(s1,x1))