question: OPTIONS:
- yes
- no
The handle also served as a dead man switch: if the operator let go of the handle, it would return to its upright position, causing the elevator cab to stop.
Why was the handle considered a "dead man switch"?

answer: yes

[Q]: Sentence: Both the number of base pairs and the number of genes vary widely from one species to another, and there is only a rough correlation between the two (an observation known as the C-value paradox). Question: What is the relation between the number of base pairs and total complement of genes in a species called? OPTIONS:
- yes
- no
++++++++++
[A]: yes

Q: Does "From its discovery in 1846 until the subsequent discovery of Pluto in 1930, Neptune was the farthest known planet." provide a valid answer to "What was Neptune before Pluto was discovered?"?
OPTIONS:
- yes
- no
A: yes

Problem: Does "The rules on burials and lay access to churches appear to have been steadily circumvented, at least unofficially." answer the question "Where were Monastic communities allowed to celebrate Mass in private?" OPTIONS:
- yes
- no

A: no

Does the sentence "In 1734, the Afar leader Kedafu, head of the Mudaito clan, seized power and established the Mudaito Dynasty." provide a valid answer to the question "What did Kedafu establish in 1734?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Antenna tuning generally refers to cancellation of any reactance seen at the antenna terminals, leaving only a resistive impedance which might or might not be exactly the desired impedance (that of the transmission line)." provide a valid answer to the question "What is an antenna designed to have?" OPTIONS:
- yes
- no

A:
no