Q: Does "Boudhanath became a UNESCO World Heritage Site in 1979." provide a valid answer to "When did UNESCO make Boudhanath a World Heritage Site?"?
A: yes

Q: Does "Canadian defence policy today is based on the Canada First Defence Strategy, introduced in 2008." provide a valid answer to "What is Canada's defense policy based on?"?
A: yes

Q: Does "During the 11th and 12th centuries the Catalan rulers expanded up to north of the Ebro river, and in the 13th century they conquered the Land of Valencia and the Balearic Islands." provide a valid answer to "When did Catalan rulers broaden their territory to north of the Ebro River?"?
A: yes

Q: Does "The statue of Peace, La Paz, was erected on a column in Plaza Cagancha and the building of the Postal Service as well as the bridge of Paso Molino were inaugurated in 1867." provide a valid answer to "What year was the Teatro Solis inaugurated?"?
A:
no