question: OPTIONS:
- yes
- no
The calendar was a refinement to the Julian calendar amounting to a 0.002% correction in the length of the year.
What was the correction due to?

answer: yes

[Q]: Sentence: Cereals were plentiful and were the key ingredient in their early brew. Question: What was the key ingredient in early Sumerian brews? OPTIONS:
- yes
- no
++++++++++
[A]: yes

Q: Does "Relations between Nasser and Qasim grew increasingly bitter on 9 March, after Qasim's forces suppressed a rebellion in Mosul, launched a day earlier by a pro-Nasser Iraqi RCC officer backed by UAR authorities." provide a valid answer to "What did Quasm do to anger Nasser?"?
OPTIONS:
- yes
- no
A: yes

Problem: Does "The economic transition after the German reunification in 1990 led to the closure of most large-scale factories and companies, leaving small and medium-sized ones to dominate the manufacturing sector." answer the question "What was the result of the economic transition after the German reunification in 1990?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Soviet generals with extensive combat experience from the Second World War were sent to North Korea as the Soviet Advisory Group." provide a valid answer to the question "What were the generals sent to North Korea collectively called?" OPTIONS:
- yes
- no

A: yes

Does the sentence "In 944 the Rus' force advanced again on the Greeks, by land and sea, and a Byzantine force from Cherson responded." provide a valid answer to the question "When did the Rus return to Byzatine seeking revenge?" OPTIONS:
- yes
- no

A:
yes