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

Sentence: 'A young man riding a skateboard down a railing'. Count the number of nouns in this sentence.
3

Sentence: 'An elephant is by itself standing for the picture'. Count the number of verbs in this sentence.
1

Sentence: 'Pedestrians stand at a crosswalk waiting for the light to change'. Count the number of verbs in this sentence.

3