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

Input: Consider Input: Sentence: 'A tray with a doughnut and a cup of coffee on it'. Count the number of nouns in this sentence.

Output: 4


Input: Consider Input: Sentence: 'a snowboarder showing off on his snowboard in the air'. Count the number of nouns in this sentence.

Output: 3


Input: Consider Input: Sentence: 'A rear mirror of a city bus in the back of the car'. Count the number of nouns in this sentence.


Output: 5