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Questions and Answers
What is the first letter of the sequence?
What is the first letter of the sequence?
How many times does the letter B appear?
How many times does the letter B appear?
What is the most frequent letter in the sequence?
What is the most frequent letter in the sequence?
Which letter appears only once?
Which letter appears only once?
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What is the last letter of the sequence?
What is the last letter of the sequence?
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