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

Input: Consider Input: Sentence: 'a group of people playing soccer on a field of grass'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'A person is lying on the luggage claim conveyor belt'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'Children sitting at a table with paper hats on their heads'. Count the number of verbs in this sentence.


Output: 1