Question: Apart from the new substances entering the market, the phase out of existing ones, which have been definitely identified as damaging the ozone layer, is far from complete.

New substances are damaging the ozone layer.

OPTIONS:
- yes
- no
Answer: no
Question: The experiment helped establish that the bacteria came first, causing inflammation, then ulcers.

Inflammation is the result of ulcers.

OPTIONS:
- yes
- no
Answer: no
Question: Swedish Foreign Minister murdered.

Swedish prime minister murdered.

OPTIONS:
- yes
- no
Answer:
no