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 saw the rock.
The text says he hit the rock on accident so he probably didn't see it.
( z1 see :ARG0 ( z2 person :name ( z3 name :op "Sam" ) ) :ARG1 ( z4 rock ) )