Broken Tire<br>Sam was bicycling one day. He hit a big rock by accident. The wheel of his bicycle was bent. Sam had to walk it back home. He eventually got it replaced.
Sam fell off his bike when he hit the big rock. 
( z1 fall :ARG1 ( z2 person :name ( z3 name :op "Sam" ) ) :ARG3 ( z4 bike :poss z2 ) :time ( z5 hit :ARG0 z2 :ARG1 ( z6 rock :mod ( z7 big ) ) ) )