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

Ex Input:
Sentence: 'people standing walking down a street while holding onto colorful umbrellas'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'Many bicyclists wearing helmets race down the street'. Count the number of verbs in this sentence.

Ex Output:
2


Ex Input:
Sentence: 'A man riding a skateboard while playing on a guitar'. Count the number of verbs in this sentence.

Ex Output:

2