Context:
How to address envelopes with attn<br>Write " attn " followed by the name of the recipient. The " attn " line should always appear at the very top of your delivery address, just before the name of the person you're sending it to. Use a colon after " attn " to make it clearly readable.
Hypothesis: Always make sure to use white envelopes.
It's impossible to say
Context:
Chris Fox, CTV Toronto A man was rushed to hospital in life-threatening condition after a stabbing near the Rogers Centre overnight. Police say that they were called to the Lower Simcoe Street and Bremner Boulevard area at around 2:40 a.m. for reports of a fight. Once on scene officers located a 20-year-old man with stab wounds. Police say that the man was able to provide a good description of the culprit and as a result, officers were able to arrest someone nearby. The victim was treated on scene before being rushed to hospital, according to police.
Hypothesis: The police were not able to identify the culprit. 
No
Context:
New Zealand's Qualifications Authority said Friday that it still strongly discourages students from using anything other than full English, but that credit will be given if the answer "clearly shows the required understanding," even if it contains text-speak.
Hypothesis: New Zealand's Qualifications Authority discourages students from using slang.

Yes