input: Background: The time and space hierarchy theorems form the basis for most separation results of complexity classes. For instance, the time hierarchy theorem tells us that P is strictly contained in EXPTIME, and the space hierarchy theorem tells us that L is strictly contained in PSPACE.
  Question: Within what variable is L constrained according to the space hierarchy theorem?
  Answer:<extra_id_0>.
output: <extra_id_0> PSPACE<extra_id_1>