[Q]: Sentence: Eritrea gained independence following the 1993 referendum, and the name of the new state was defined as State of Eritrea in the 1997 constitution.[citation needed] Question: What was the Eritrean region known as during the Middle Ages? OPTIONS:
- yes
- no
++++++++++
[A]: no

[Q]: Sentence: Since 1934, the sale of Federal Duck Stamps has generated $670 million, and helped to purchase or lease 5,200,000 acres (8,100 sq mi; 21,000 km2) of habitat. Question: How much money has the sale of Federal Duck Stamps generated since 1934? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Question: What was zinc named after? OPTIONS:
- yes
- no
++++++++++
[A]:
no