Question: Flags are used at all beaches to advise swimmers of sea a green flag means the sea is safe for swimming, while a red flag warns of danger.
It is not advised to go in the sea when the red flag is flying.
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: it is not possible to tell

Question: Most who have to go through it are poor people of color.
Everyone who goes through it is very rich.
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: no

Question: He suggests that processing and transportation of mail do not seem to be characterized by scale economies, and that they could be provided by competing firms.
He claims that economies of scale do not apply to mail treatment.
OPTIONS:
- yes
- it is not possible to tell
- no

Answer:
yes