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

Example Input: Sentence: 'Luggage coming down a carousel at an airport'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'The street sign for Ronald Reagan Allee in Berlin'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'A snowboarder is in the air at a snowboarding competition'. Count the number of verbs in this sentence.
Example Output:
0