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

Ex Input:
Sentence: 'A public restroom has a stall and a urinal'. Count the number of verbs in this sentence.

Ex Output:
1

Ex Input:
Sentence: 'An outdoor cafe with umbrellas overlooking the water'. Count the number of verbs in this sentence.

Ex Output:
1

Ex Input:
Sentence: 'A river running through the middle of a city'. Count the number of verbs in this sentence.

Ex Output:
1