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

Ex Input:
Sentence: 'A man riding his surfboard through the waves'. Count the number of verbs in this sentence.

Ex Output:
1


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: 'The young man is getting ready to do tricks on his skateboard'. Count the number of nouns in this sentence.

Ex Output:

3