question: How much did LaserDiscs cost to produce by the end of the 1980s ?
answer: $ 5.00 per two-sided disc
turker_answer: LaserDiscs cost $ 5.00 per two-sided disc to produce by the end of the 1980s .
rule-based: $ 5.00 per two-sided disc did LaserDiscs cost to produce by the end of the 1980s .