question: OPTIONS:
- yes
- no
Following a peak in growth in 1979, the Liberian economy began a steady decline due to economic mismanagement following the 1980 coup.
By what percentage did Liberia's GDP reduced by during the civil war?

answer: no

[Q]: Sentence: Coated tungsten carbide is recommended since many board materials are very abrasive and drilling must be high RPM and high feed to be cost effective. Question: What property do PCBs have that makes them tough to drill through? OPTIONS:
- yes
- no
++++++++++
[A]: yes

Q: Does "Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed." provide a valid answer to "What prevents air or gas leaks from a light bulb?"?
OPTIONS:
- yes
- no
A: no

Problem: Does "In 330, after a period of civil war, Constantine the Great (r. 306337) refounded the city of Byzantium as the newly renamed eastern capital, Constantinople." answer the question "What was the name of the city previously located on the site of Constantinople?" OPTIONS:
- yes
- no

A: yes

Does the sentence "The current group is headed by Derek Schaul (Derek the Five Dollar Kid)." provide a valid answer to the question "Who heads the current group?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Feuerbach's materialism would later heavily influence Karl Marx." provide a valid answer to the question "What did the author of "The Essence of Christianity" consider religion to be?" OPTIONS:
- yes
- no

A:
no