The girl is pursing her lips.
The young boya accidently bit his lip
The person is either male or female, not both and they cannot be pursing their lip when they bit it.
exists e1 x1 x2.(n_lip(x2) & of(x2,x1) & n_female(x1) & n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_purse(e1))
exists s1 x1 x2.(n_lip(x2) & of(x2,x1) & n_male(x1) & n_boya(x1) & a_young(s1) & Theme(s1,x1) & a_topic(x1) & accidently(x1,x2) & r_bit(x2))