Problem: Does "Following the death of Grand Prince Igor in 945, his wife Olga ruled as regent in Kiev until their son Sviatoslav reached maturity (ca." answer the question "When did Prince Igor past away?" OPTIONS:
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A: yes

Problem: Does "The rise of this empire saw the birth of efficient administration, overseas trade and commerce and the development of new style of architecture called "Chalukyan architecture"." answer the question "What style of architecture developed during the Chaluka reigns?" OPTIONS:
- yes
- no

A: yes

Problem: Does "On August 25, Voroshilov told them "[i]n view of the changed political situation, no useful purpose can be served in continuing the conversation."" answer the question "What was the response of Kliment Voroshilov in regards to further conversations with Britain and France?" OPTIONS:
- yes
- no

A:
yes