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

Example Input: Sentence: 'Two sandwiches sitting on top of papers on a table'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A bunch of planes flying close with trails of smoke'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'Looking at a white bus in the rear view mirror'. Count the number of verbs in this sentence.
Example Output:
1