Pet Snake<br>Jake had a brother with a snake. The brother never took care of it. Jake eventually took over its care. It soon became Jake's official pet. He kept it for many years.
Snakes cannot become official pets.
( z1 possible :polarity - :ARG1 ( z2 become :ARG1 ( z3 snake ) :ARG2 ( z4 pet :mod ( z5 official ) ) ) )