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

Sentence: 'a little girl holds a tooth brush while her mother stands in the background in a bathroom'. Count the occurrences of the word 'while' in the given sentence.
1

Sentence: 'a woman sitting on a couch holding a wii game controller'. Count the occurrences of the word 'wii' in the given sentence.
1

Sentence: 'steeple and clock of on the face of a building'. Count the occurrences of the word 'of' in the given sentence.
2