Tree Surprise<br>One day, my brother and I went for a walk in the woods. We heard a mewing sound behind one of the trees. We investigated and found a kitten there. The kitten was starving so we took it home to feed it. We decided to keep the kitten as a pet.
The brothers rarely go walking in the woods. 
The passage does not indicate how frequently the brothers go walking in the woods. 
( z1 walk :ARG0 ( z2 and :op ( z3 brother ) :op ( z4 brother ) ) :ARG2 ( z5 woods ) :ARG1-of ( z6 rare ) )