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

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

Ex Output:
1


Ex Input:
Sentence: 'A dog looking up at a person with a frisbee at their feet'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A pair of snowmen stand in front of two people holding skis'. Count the number of nouns in this sentence.

Ex Output:

5