Anchor: They are very crowded, especially on summer weekends.
Entailed: On summer weekends they are especially crowded.
Contradiction: They shut down during the summer months and do not reopen until fall.
Contradiction: Even if you're in those areas, you don't have to use AskMe.com or anything else.
Contradiction: Two men step off of a bus.
Contradiction: A custodian is carrying bags of dirt.
Contradiction: A reduction in the emissions of certain pollutants will prevent acid rain in the Appalachian Mountains.