Teacher: In this task, you need to replace a letter in the sentence with another given letter.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Sentence: 'group of motorcycle motorists trying to merge into traffic'. Replace the letter 'o' with 'n' in the sentence.
Solution: grnup nf mntnrcycle mntnrists trying tn merge intn traffic
Reason: The letter 'o' has been replaced in the letter 'n'.

Now, solve this instance: Sentence: 'someone is standing outside with a unique device'. Replace the letter 'h' with 'l' in the sentence.
Student:
someone is standing outside witl a unique device