Fast fingers fly upon the lively keys belonging to this true to sound Yamaha keyboard.
Fingers playing a keyboard.
Fast fingers flying upon the keys, is a different way to say fingers playing a keyboard.
exists e2 e1 p1 s1 x1 x2 x3 x4.(Topic(x4,p1) & exists e3 x5 x6.(Time(e3,x6) & n_yamaha(x6) & Time(e3,x5) & n_keyboard(x5) & Actor(e3,x4) & v_sound(e3)) & n_true(x4) & n_key(x3) & a_lively(s1) & Theme(s1,x3) & for(e1,e2) & to(e2,x4) & Actor(e2,x1) & v_belong(e2) & upon(e1,x3) & Actor(e1,x1) & v_fly(e1) & n_finger(x1) & of(x1,x2) & n_fast(x2))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_keyboard(x3) & (x1 = x2) & n_finger(x1))