Swimming<br>When Steven was 7, he wanted to learn how to swim. He took lessons once a week for a few months. He realized he loved swimming so he joined a swim team. He constantly improved his skills over the years. Next week, he swims for the USA in the Olympics.
Steven didn't know how to swim when he was 5
( z1 know :polarity - :ARG0 ( z2 person :name ( z3 name :op "Steven" ) ) :ARG1 ( z4 swim :ARG0 z2 ) :time ( z5 age :ARG1 z2 :ARG2 ( z6 temporal-quantity :quant 5 :unit ( z7 year ) ) ) )