Conversation so far:
Did Stere live in Siberia?
Turinsk.
What did he have to do with Siberia?
In 1885, he was deported to Siberia, serving a three-year term.
What did he do to get sent to Siberia?
CANNOTANSWER.
Why was he deported to Siberia?
CANNOTANSWER.
What did he do in Siberia?
the Steres joined a group of revolutionaries in internal exile.
What else can you tell me about he article?
physician who examined him noted that he had suffered a nervous breakdown, and had him moved to a prison hospital.

Question: Why did he have a nervous breakdown?
Self-contained rewrite: Why did Constantin Stere have a nervous breakdown?