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

Ex Input:
Sentence: 'A photo take though glass of a polar pear diving under water'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Three zebra are grazing on grass in an open field'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'an elephant standing in some tall grass next to the bushes'. Count the number of nouns in this sentence.

Ex Output:

3