A couple walks down the street holding hands while a man plays music.
The music being played is ragtime.
There is no way to tell what music the man is playing, it could be country music, blues, rockabilly, soul music, etc. There isn't even reference to an instrument, making it so you cannot tell that ragtime is being played just by reading sentence 1.
exists e1 e2 p1 x1 x2 x3.(n_street(x2) & for(e1,e2) & exists e3 x4 x5.(Theme(e3,x5) & Actor(e3,x4) & v_play(e3) & n_music(x5) & n_man(x4)) & while(e2,p1) & Theme(e2,x3) & Actor(e2,x1) & v_hold(e2) & n_hand(x3) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_couple(x1))
exists e1 p1 x1 x2.(n_music(x1) & exists x3.((x1 = x3) & n_ragtime(x3)) & Theme(e1,x2) & v_play(e1) & (x1 = x2))