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

Ex Input:
Sentence: 'A man skateboarding through an obstacle course with cones'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'a young teen boy doing a trick on his skateboard'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'An elephant is walking through a vast wild land'. Count the number of verbs in this sentence.

Ex Output:

1