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

Input: Consider Input: Sentence: 'There's a toilet in a bathroom with a mirror behind it'. Count the number of verbs in this sentence.

Output: 0


Input: Consider Input: Sentence: 'A red jet plane streaming blue exhaust against a gray sky'. Count the number of verbs in this sentence.

Output: 0


Input: Consider Input: Sentence: 'Skier on the top of a ski course being followed by another rider'. Count the number of verbs in this sentence.


Output: 1