question: OPTIONS:
- yes
- no
Alloys of copper with aluminium (about 7%) have a pleasant golden color and are used in decorations.
What color is created when the alloys of copper and aluminium are combined?

answer: yes

[Q]: Sentence: Peaceful protests in Yerevan supporting the Karabakh Armenians were met with anti-Armenian pogroms in the Azerbaijani city of Sumgait. Question: Who partitioned Nagorno-Karabakh from Armenia? OPTIONS:
- yes
- no
++++++++++
[A]: no

Q: Does "Early Presbyterians were careful to distinguish between the "church," which referred the members, and the "meeting house," which was the building in which the church met." provide a valid answer to "What were churches called before the 19th century?"?
OPTIONS:
- yes
- no
A: yes

Problem: Does "On an international level the German DIN 4512 system has been effectively superseded in the 1980s by ISO 6:1974, ISO 2240:1982, and ISO 5800:1979 where the same sensitivity is written in linear and logarithmic form as "ISO 100/21" (now again with degree symbol)." answer the question "What took the place of the German DIN 4512 system?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Urban expansion, however, moved very slowly because of the events that followed." provide a valid answer to the question "What year did Portugal invade the recently liberated territory?" OPTIONS:
- yes
- no

A: no

Does the sentence "In January 1915, Bell made the first ceremonial transcontinental telephone call." provide a valid answer to the question "Who was on the other end of the first cross country phone call?" OPTIONS:
- yes
- no

A:
no