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

Example Input: Sentence: 'Many boats float down the water in between the buildings'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'a man stands on he beach with a surf board'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'some baseball players are playing baseball on a field'. Count the number of nouns in this sentence.
Example Output:
4