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

Ex Input:
Sentence: 'there are a group elephants that can be seen in the wild'. Count the number of verbs in this sentence.

Ex Output:
1

Ex Input:
Sentence: 'A man brushing his teeth with a tooth brush'. Count the number of nouns in this sentence.

Ex Output:
4

Ex Input:
Sentence: 'A clock moniker at the front of a pier leading to a beach'. Count the number of verbs in this sentence.

Ex Output:
1