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

Example Input: Sentence: 'A zebra in the sun on a dirt road'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A toilet is on the road by a truck'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'A tiger stripped cat laying on an opened suitcase'. Count the number of verbs in this sentence.
Example Output:
3