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

[EX Q]: Sentence: 'Pedestrians stand at a crosswalk waiting for the light to change'. Count the number of nouns in this sentence.
[EX A]: 3

[EX Q]: Sentence: 'A boy in a wheel chair on a tennis court'. Count the number of nouns in this sentence.
[EX A]: 5

[EX Q]: Sentence: 'A black knife that has been set next to a keyboard'. Count the number of nouns in this sentence.
[EX A]:
2