question: OPTIONS:
- yes
- no
During the 19th century, Iran irrevocably lost swaths of its territories in the Caucasus which made part of the concept of Iran for centuries, to neighboring Imperial Russia.
Which country took over Iran's territories in the Caucasus in the 19th Century?

answer: yes

[Q]: Sentence: His or her role is to ensure the MoD operates effectively as a department of the government. Question: What is the Permanent Under-Secretary of State for Defence generally known as? OPTIONS:
- yes
- no
++++++++++
[A]: no

Q: Does "These movements can then be further broken down into a hierarchy of smaller units: first sections, then periods, and finally phrases." provide a valid answer to "What, typically, is the speed of the second movement in a classical piece?"?
OPTIONS:
- yes
- no
A: no

Problem: Does "Intersecting crevasses can create isolated peaks in the ice, called seracs." answer the question "What are seracs?" OPTIONS:
- yes
- no

A: yes

Does the sentence "This campaign is known as "The Race to the Dan" or "The Race for the River."" provide a valid answer to the question "What is another name for the race to the Dan?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Pesticides are one of the causes of water pollution, and some pesticides are persistent organic pollutants and contribute to soil contamination." provide a valid answer to the question "What is it called when pesticides are caught in the wind and carried to unintended areas?" OPTIONS:
- yes
- no

A:
no