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

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 cup of black coffee, biscuits, a piece of meat and grits on a table'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'A pizza with meat and cheese sitting by a beer'. Count the number of verbs in this sentence.
Example Output:
1