instruction:
Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
question:
What evolved er what molecules of the adaptive immune system only exist in jawed vertebrates?
answer:
What molecules of the adaptive immune system only exist in jawed vertebrates?


question:
Where was or no rather who was Masovia II of Boleslaw?
answer:
Who was Masovia II of Boleslaw?


question:
What video game series did Philip Glass, no no I meant, Alex Seropian make?
answer:
What video game series did Alex Seropian make?