Read the following premise and answer if the hypothesis is true.
Dirkie Chamberlain (born 3 November 1986, Pretoria) is a South African field hockey player. At the 2012 Summer Olympics she competed with the South Africa women's national field hockey team in the women's tournament. She has also competed at the 2010 and 2014 Commonwealth Games.
Hypothesis: Dirkie Chamberlain is younger than 40 years old.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
Yes
Yes.