In this task, you need to count the number of nouns/verbs in the given sentence.

[Q]: Sentence: 'A group of brown teddy bears one without a head'. Count the number of nouns in this sentence.
[A]: 3


[Q]: Sentence: 'A man riding a skateboard on a walkway surrounded by people'. Count the number of verbs in this sentence.
[A]: 2


[Q]: Sentence: 'Several balls of yarn are sitting on an oven top'. Count the number of nouns in this sentence.
[A]:
3