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

Example Input: Sentence: 'A new refrigerator and a new washer and dryer'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'There is a fire truck pulling in to traffic'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A small child standing next to a train at a station'. Count the number of verbs in this sentence.
Example Output:
1