Without taking any major highways, how long will it take for me to drive from Houston to St. Louis?
[IN:GET_ESTIMATED_DURATION Without taking any [SL:PATH_AVOID [IN:GET_LOCATION [SL:CATEGORY_LOCATION major highways ] ] ] , how long will it take for me to [SL:METHOD_TRAVEL drive ] from [SL:SOURCE Houston ] to [SL:DESTINATION St . Louis ] ? ]