Avril Lavigne singing during a concert.
Avril Lavigne performs her classic Sk8tr Boi.
Singing does not imply she performs her classic Sk8tr Boi.
exists e1 x1 x2 x3.(ne_per_lavigne(x1) & (x1 = x2) & ne_per_avril(x2) & during(e1,x3) & n_concert(x3) & Actor(e1,x1) & v_sing(e1))
exists e1 s1 x1 x2 x3 x4.(ne_nam_boi(x3) & of(x3,x4) & n_sk8tr(x4) & a_classic(s1) & Theme(s1,x3) & of(x3,x1) & n_female(x1) & ne_per_lavigne(x1) & (x1 = x2) & ne_per_avril(x2) & Theme(e1,x3) & Actor(e1,x1) & v_perform(e1))