An orchestra made up of individuals of asian descent, with a man playing the cello forefront.
The cellist is the leader of this orchestra.
Playing  or being in front does not imply being the leader.
exists e1 e2 p1 x1 x2 x3 x4 x5.(n_forefront(x4) & of(x4,x5) & n_cello(x5) & a_topic(x1) & Theme(e2,x4) & Actor(e2,x3) & v_play(e2) & with(e1,x3) & n_man(x3) & exists s1 s2 x6 x7.(of(s1,x6) & of(x6,x7) & n_descent(x7) & a_asian(s2) & Theme(s2,x7) & n_individual(x6) & Theme(s1,x2) & a_up(s1)) & Recipient(e1,p1) & Topic(e1,x2) & v_make(e1) & (x1 = x2) & n_orchestra(x1))
exists p1 x1 x2 x3.(n_orchestra(x3) & n_leader(x2) & n_cellist(x1) & (x1 = x2) & of(x2,x3))