How long will it take me to go to Sara's house, then John's house, then to Carly's house?
[IN:GET_ESTIMATED_DURATION How long will it take me to go to [SL:WAYPOINT [IN:GET_LOCATION_HOME [SL:CONTACT Sara ] 's house ] ] , then [SL:WAYPOINT [IN:GET_LOCATION_HOME [SL:CONTACT John ] 's house ] ] , then to [SL:DESTINATION [IN:GET_LOCATION_HOME [SL:CONTACT Carly ] 's house ] ] ? ]