question: What is given to companies who develop drugs for `` orphan diseases '' ?
answer: tax reductions , fee waivers , and market exclusivity on that drug for a limited time ( seven years ) , regardless of whether the drug is protected by patents
turker_answer: Tax reductions , fee waivers , and market exclusivity on that drug for a limited time ( seven years ) , regardless of whether the drug is protected by patents , is given to companies who develop drugs for `` orphan diseases '' .
rule-based: Tax reductions , fee waivers , and market exclusivity on that drug for a limited time ( seven years ) , regardless of whether the drug is protected by patents is given to companies who develop drugs for `` orphan diseases '' .