Question: Sentence A: It has been a resounding success, with SO2 emissions from power generation dropping 4.5 million tons from 1990 levels and NOx emissions down 1.5 million tons from 1990 levels (about 3 million tons lower than projected growth).

Sentence B: SO2 emissions have doubled since 1990.

If sentence A is true, how about sentence B?
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: no

Question: Sentence A: The approach used to create inventories was the same as that used for the Heavy-Duty Engine (HDE) Rulemaking analysis (US EPA, 2000d) with modifications to reflect emission and modeling advances since that analysis.

Sentence B: The process used to make HDE rules was the one used, with changes to customize the study.

If sentence A is true, how about sentence B?
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: yes

Question: Sentence A: And since 1995, Turkish troops have invaded northern Iraq three times to destroy PKK bases.

Sentence B: Each of these invasions, while roughly for the same objective, had different outcomes.

If sentence A is true, how about sentence B?
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: it is not possible to tell

Question: Sentence A: Meanwhile, their pollsters skew the polls to suit their clients' politics.

Sentence B: Pollsters change polls to aid clients.

If sentence A is true, how about sentence B?
OPTIONS:
- yes
- it is not possible to tell
- no

Answer:
yes