Data Entry from PDF to Plain Text

I have 400 Multipe Choice Questions with answers in word and as pdf. I need someone to type all questions and answers in the following format: Samples questions _______. {~%100%this is the first answer, which is the correct answser. ~%0%this is the second answer, which is the incorrect answser. ~%100%this is the third answer, which is ALSO the second correct answser. ~%0%this is the fourth answer, which is the correct answser.} The prefix "~%100%" means that this is the correct answer of the question. I need the output as a plain text (.txt).