Question: I doubted it.
I questioned it, then started going through the facts.
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: it is not possible to tell

Question: In the very early morning the park is taken over by people doing tai-chi exercises.
No one does tai-chi in the park in the morning.
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: no

Question: But also he could trade for guns two, three, five guns at a time.
He was a shrewd businessman who knew the trade like the back of his hand.
OPTIONS:
- yes
- it is not possible to tell
- no

Answer:
it is not possible to tell