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

Example Input: Sentence: 'There is a close up view of a sandwich that is not eaten'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A oil tanker train on the tracker with mountains in the background'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'A zebra sticks his head into a car window and checks out a passenger'. Count the number of verbs in this sentence.
Example Output:
2