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

Ex Input:
Sentence: 'The bowl is full of broccoli and some kind of meat'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'A bike stands alone beside a rock wall'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'Two giraffes in a field with lots of trees behind them'. Count the number of nouns in this sentence.

Ex Output:

4