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

Example Input: Sentence: 'Yellow utility truck parked inside a warehouse by itself'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'An orange suitcase sits alone on a city street'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'a train on railroad tracks next to trees'. Count the number of verbs in this sentence.
Example Output:
0