question: What was the Luftwaffe 's second primary policy ?
answer: to interfere with production in the vast industrial arms factories of the West Midlands
turker_answer: The Luftwaffe 's second primary policy was to interfere with production in the vast industrial arms factories of the West Midlands .
rule-based: The Luftwaffe 's second primary policy was to interfere with production in the vast industrial arms factories of the West Midlands .