question: Over how many hours had Jehovah 's Witnesses spent preaching and in `` Bible study '' activity in 2015 ?
answer: 1.93 billion
turker_answer: Jehovah 's Witnesses spent over 1.93 billion hours preaching and in `` Bible study '' activity in 2015 .
rule-based: Had Jehovah 's Witnesses spent preaching and in `` Bible study '' activity in 2015 over 1.93 billion .