question: OPTIONS:
- yes
- no
Besides being the political center, Brasilia is an important economic center.
How much of Brazil's GDP comes from Brasilia?

answer: no

question: OPTIONS:
- yes
- no
The fire burned 280,000 acres (1,100 km2), killed 15 people, and destroyed more than 2,200 homes.
How many acres were burned in the historic Cedar Fire of 2003?

answer: yes

question: OPTIONS:
- yes
- no
A well-publicized case occurred in 2007, when Jennifer Strange died while participating in a water-drinking contest.
In 2007, what kind of contest was Jennifer Strange participating in upon her death?

answer: yes

question: OPTIONS:
- yes
- no
For example, when starved of amino acids, Myxobacteria detect surrounding cells in a process known as quorum sensing, migrate toward each other, and aggregate to form fruiting bodies up to 500 micrometres long and containing approximately 100,000 bacterial cells.
Why do cells of Myxobacteria migrate towards each other?

answer:
yes