Context:
For country singer Dustin Lynch, his life changed after he played the Country Music Association Festival in 2017. Lynch, who played the festival again this year, said that he got to debut his song "Small Town Boy," which went on to be the biggest country song of 2017. (June 10) AP
Hypothesis: Dustin Lynch became a professional singer in 2011.
It's impossible to say
Context:
In lending support to what the previous speaker from Peterborough said to a grassroots movement, we are recognizing that the insanity of land mines and the insanity of war that maims hundreds of thousands, indeed millions of people, is something that we must stop and work against.
Hypothesis: the agent is aged 28
It's impossible to say
Context:
Europe's economic environment has altered considerably over the last thirty years, and the economies of European countries have progressively opened up to the global economy. As a result, the competitiveness of the European economies is dependent not just on production costs, but also on the performance of pension and social security systems guaranteeing security for the future.
Hypothesis: An increase in production costs causes an increase in economical competitiveness.

It's impossible to say