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

[Q]: Sentence: 'A part of a cake left over from a celebration'. Count the number of nouns in this sentence.
[A]: 3


[Q]: Sentence: 'Two cows that are standing in the grass'. Count the number of verbs in this sentence.
[A]: 1


[Q]: Sentence: 'Two boys skate boarding down a city sidewalk'. Count the number of nouns in this sentence.
[A]:
4