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

Ex Input:
Sentence: 'A man and children are riding on the back of an elephant'. Count the number of nouns in this sentence.

Ex Output:
4

Ex Input:
Sentence: 'A little girl with an broken arm posing near a restroom sink and toilet'. Count the number of verbs in this sentence.

Ex Output:
1

Ex Input:
Sentence: 'An adult elephant and baby elephant loving on one another'. Count the number of verbs in this sentence.

Ex Output:
1