Context:
The recent 14% hike in third class postage rates, accompanied by simultaneous double-digit paper price increases, has hit smaller catalogers especially hard.
Hypothesis: There's been a double digit price increase on paper.
Yes
Context:
How to tell if a goldfish is pregnant<br>Find out if your fish is female. The best way to find out the sex of your goldfish is to ask when you buy the fish, or to consult a vet. That said, females goldfish typically have plump bodies.
Hypothesis: People at the pet store are qualified to tell if a goldfish is pregnant.

It's impossible to say
Context:
First becoming famous in her native Ukraine in the 1990s, long-haired self-described "Amazon" Ruslana gained international recognition for winning the 2004 Eurovision Song Contest with her song "Wild Dances," inspired by the musical traditions of the Hutsul people of the Ukrainian Carpathian Mountains.  In the five years since, Ruslana has decided to use her name and public status to represent a number of worthy causes, including human trafficking, renewable energy, and even the basic concept of democratic process, becoming a public face of Ukraine's Orange Revolution and later serving in Parliament.
Hypothesis: Ruslana has lovely short hair

No