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

Ex Input:
Sentence: 'A person doing tricks on a skateboard about to fall'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A young man on a skateboard with hand protectors'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'Glass showing a reflection of an SUV parked in a parking spot'. Count the number of verbs in this sentence.

Ex Output:

2