Text: A mule is the offspring of a male donkey (jack) and a female horse (mare). Horses and donkeys are different species, with different numbers of chromosomes. Of the two F1 hybrids (first generation hybrids) between these two species, a mule is easier to obtain than a hinny, which is the offspring of a female donkey (jenny) and a male horse (stallion).

Question: do horse and donkey belong to the same species?

OPTIONS:
- no
- yes
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Answer: no

Text: The history of Liverpool can be traced back to 1190 when the place was known as 'Liuerpul', possibly meaning a pool or creek with muddy water, though other origins of the name have been suggested. The borough was founded by royal charter in 1207, but Liverpool remained a small settlement until its trade with Ireland and coastal parts of England and Wales was overtaken by trade with Africa and the West Indies, which included the slave trade. The town's first wet dock was opened in 1715 and Liverpool's expansion to become a major city continued over the next two centuries.

Question: did liverpool used to be part of wales?

OPTIONS:
- no
- yes
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Answer: no

Text: Cats have seven cervical vertebrae like almost all mammals, thirteen thoracic vertebrae (humans have twelve), seven lumbar vertebrae (humans have five), three sacral vertebrae (humans have five because of their bipedal posture), and, except for Manx cats and other shorter tailed cats, twenty-two or twenty-three caudal vertebrae (humans have three to five, fused into an internal coccyx). The extra lumbar and thoracic vertebrae account for the cat's enhanced spinal mobility and flexibility, compared to humans. The caudal vertebrae form the tail, used by the cat as a counterbalance to the body during quick movements. Between their vertebrae, they have elastic discs, useful for cushioning the jump landings.

Question: is there a bone in a cats tail?

OPTIONS:
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Answer: yes

Text: Autogyros and helicopters were used during World War II. List includes prototypes.

Question: were there helicopters in the second world war?

OPTIONS:
- no
- yes
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Answer:
yes