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

Ex Input:
Sentence: 'the man with many graphic novels on a display table is on a cell phone'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a small child sitting in a seat with a bag'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a wooden table with a ripe yellow banana cut up'. Count the occurrences of the word 'wooden' in the given sentence.

Ex Output:

1