Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

Q: How many bits are thought to be a hard problem oops are often in the primes used for RSA public key cryptography algorithms?

A: How many bits are often in the primes used for RSA public key cryptography algorithms?
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Q: When was the Southern Pacific or no make that Central Pacific Railroad founded?

A: When was the Central Pacific Railroad founded?
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Q: What prompted Fielding H. Garrison no Shen Kuo to believe the land was formed by erosion of the mountains?

A:
What prompted Shen Kuo to believe the land was formed by erosion of the mountains?
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