question: OPTIONS:
- yes
- no
Burke was a friend of David Hume, with whom Rousseau had stayed.
Who did Rousseau stay with when visiting Britain?

answer: yes

question: OPTIONS:
- yes
- no
While LEDs have the advantage over fluorescent lamps that they do not contain mercury, they may contain other hazardous metals such as lead and arsenic.
What dangerous metal can LEDs contain?

answer: yes

question: OPTIONS:
- yes
- no
After the death of the president Benito Juarez in 1872, the first magistracy of the country was occupied by the vice-president Sebastian Lerdo de Tejada, who called for new elections.
In which year did Benito Juarez die?

answer: yes

question: OPTIONS:
- yes
- no
White" grapes are actually green in color, and are evolutionarily derived from the purple grape.
What type of food are grapes?

answer:
no