Can we draw the following hypothesis from the context (see options)? 

Context:

Winter Soldier is a 1972 documentary film chronicling the Winter Soldier Investigation which took place in Detroit, Michigan, from January 31 to February 2, 1971. The film documents the accounts of American soldiers who returned from the War in Vietnam, and participated in this war crimes hearing.

Hypothesis: Winter Soldier is a 1972 documentary film chronicling the Winter Soldier Investigation which took place in Detroit, from January 31 to February 2, 1971. This was about riots in Detroit. 
Options: + Yes + It's impossible to say + No
No