question: In the late nineties , what was considered the rate of cable-borne elevator problems ?
answer: eight millionths of one percent ( 1 in 12 million ) of elevator rides
turker_answer: In the late nineties , the rate of cable-borne elevator problems was considered eight millionths of one percent ( 1 in 12 million ) of elevator rides .
rule-based: In the late nineties , eight millionths of one percent ( 1 in 12 million ) of elevator rides was considered the rate of cable-borne elevator problems .