A man playing an instrument while others sit at a table and watch.
The man is performing in front of people.
The man may simply be playing for his own pleasure while people stop by and watch rather than performing for those people.
exists e1 p1 x1 x2 x3.(a_topic(x1) & exists e2 x4 x5 x6 x7.(at(e2,x5) & n_watch(x7) & n_table(x6) & subset_of(x7,x5) & subset_of(x6,x5) & Actor(e2,x4) & v_sit(e2) & -(x4 = x1) & n_person(x4)) & n_person(x1) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_instrument(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(n_man(x1) & in(e1,x2) & of(x2,x3) & n_people(x3) & n_front(x2) & Actor(e1,x1) & v_perform(e1))