Write a program that extracts from a text all sentences that contain a particular word. We accept that the sentences are separated from each other by the character "." and the words are separated from one another by a character which is not a letter. Sample text:

We are living in a yellow submarine. We don't have anything else. Inside the submarine is very tight. So we are drinking all the day. We will move out of it in 5 days.

Sample result:

We are living in a yellow submarine.

We will move out of it in 5 days.