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

Sentence: 'A barge floating down a river towards a city'. Count the number of nouns in this sentence.
3

Sentence: 'A person on a skateboard reads while riding'. Count the number of verbs in this sentence.
2

Sentence: 'Onlookers watch as a skateboarder performs a jump'. Count the number of verbs in this sentence.
2