In this task, you need to count the occurrences of the given word in the given sentence.

Ex Input:
Sentence: 'a red and white stop sign and a black and white sign and a building'. Count the occurrences of the word 'and' in the given sentence.

Ex Output:
4


Ex Input:
Sentence: 'two giraffes stand on a street with a bunch of parked cars'. Count the occurrences of the word 'street' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a zebra lays down in front of a tree'. Count the occurrences of the word 'of' in the given sentence.

Ex Output:

1