Context:
After months of planning and build-up, Supreme Commander Dwight Eisenhower set Operation Overlord for June 6, 1944: some 7000 ships in the British Isles set to sea and sailed across the English Channel, and, under the leadership of Field Marshall Bernard Montgomery, 135,000 troops landed and stormed Feldmarschal Erwin Rommel's German positions along 80 km of the Normandy coast.
Hypothesis: Erwin Rommel was surprised by Operation Overlord.
It's impossible to say
Context:
The boys roared at Eph 's jokes , and had rough and tumble games over Bose , who did n't mind them in the least ; and so the afternoon wore pleasantly away .<br>At sunset the boys went out to feed the cattle , bring in heaps of wood , and lock up for the night , as the lonely farm-house seldom had visitors after dark .
Hypothesis: The boys played football. 
It's impossible to say
Context:
And this is a town that everybody agrees, law enforcement, Border Patrol, residents on both sides, is a staging area of illegal drugs and illegal aliens.
Hypothesis: there are no drugs. 

No