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

Ex Input:
Sentence: 'a boy holding onto a wii mote by a fireplace'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'two pictures are hanging on the wall of the bathroom'. Count the occurrences of the word 'the' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a kitchen with drawers refrigerator cabinets and a stove in it'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

2