Context:
"Say "I Gotta Believe!"" is a single by De La Soul featuring Japanese singer Double. The song was released as part of the soundtrack for the popular Japanese videogame, "PaRappa the Rapper 2". Outside Japan, copies of the single are extremely rare. The song received a promotional video, which featured the group as chefs, mixed with clips of PaRappa.
Hypothesis: De La Soul wrote the soundtrack for PaRappa the Rapper 2
It's impossible to say
Context:
British mountaineer Alison Hargreaves becomes the first woman to climb Mount Everest alone and without oxygen tanks.
Hypothesis: She didn't reach the top.
No
Context:
North Korea states intention to restart reactors, throws out IAEA inspectors and takes down inspection cameras, announces immediate withdrawal from the Nuclear Non-Proliferation Treaty and makes threats of war if the UN or the United States imposes sanctions.
Hypothesis: North Korea took down cameras.

Yes