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

Input: Consider Input: Sentence: 'A very old style fire truck at the station'. Count the number of verbs in this sentence.

Output: 0


Input: Consider Input: Sentence: 'a big white airplane that is on a runway'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'Many umbrellas are for sale at a market stall'. Count the number of nouns in this sentence.


Output: 4