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

Sentence: 'There is a silver and blue fire hydrant on a grass field'. Count the number of nouns in this sentence.
5

Sentence: 'People are boarding and departing a train at a station'. Count the number of verbs in this sentence.
2

Sentence: 'A man on a surf board with a lifejacket on'. Count the number of nouns in this sentence.

4