Question:
If you're lucky, nobody else will be there to enjoy the waterfall, the rocks and ferns, and the picnic site.

Does it follow that "Sometimes the picnic site is empty."?
Answer:
yes

Question:
um-hum that's right that's right a matter of fact i thought i had one funny story when um i was at TI the first year or so we were sent out to our record retention facility to look through two thousand boxes we had them in the warehouse and at that point it the warehouse was over across the road and it wasn't air conditioned

Does it follow that "The warehouse was well ventilated because it had superb air conditioning."?
Answer:
no

Question:
Circulation has barely risen since World War II, and it's been falling for five years.

Does it follow that "Circulation has been falling for more than a year."?
Answer:
yes

Question:
Each subclass must generate sufficient revenue to cover its costs.

Does it follow that "Generating sufficient money may be difficult due to taxes."?
Answer:
it is not possible to tell