What is the shortest route to the Justin Timberlake concert from Ashley's house?
[IN:GET_DIRECTIONS What is the shortest route to [SL:DESTINATION [IN:GET_EVENT the [SL:NAME_EVENT Justin Timberlake ] [SL:CATEGORY_EVENT concert ] ] ] from [SL:SOURCE [IN:GET_LOCATION_HOME [SL:CONTACT Ashley ] 's house ] ] ? ]