Given the task definition and input, reply with output. In this task, you need to count the occurrences of the given word in the given sentence.

Sentence: 'a boy and a girl are on the beach playing with a disc'. Count the occurrences of the word 'disc' in the given sentence.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
1