question: As of 2010 , what is the highest capacitance a supercapacitor has achieved ?
answer: up to 5 kF
turker_answer: As of 2010 , up to 5 kF is the highest capacitance a supercapacitor has achieved .
rule-based: As of 2010 , up to 5 kF is the highest capacitance a supercapacitor has achieved .