The conversation between human and AI assistant.
[|Human|] Detect the presence of any typos in this sentence.
[|AI|] There are two typos in the sentence. "didnt" should be "didn't" with an apostrophe to indicate the contraction of "did" and "not." Also, "doo" should be "do" with only one o.
[|Human|] 
Detect the presence of any typos in this sentence.