#fog  droplets of water vapor suspended in the air near the ground
  supertype:  #aerosol  a cloud of solid or liquid particles in a gas
  subtype:  #fogbank  a large mass of fog on the sea (as seen from a distance)
  subtype:  #ice_fog__icefog__pogonip  a dense winter fog containing ice particles
  subtype:  #mist  a thin fog with condensation near the ground
  subtype:  #pea-souper__peasouper__pea_soup__peasoup  a heavy thick yellow fog

No statement uses or specializes #fog; click here to add one.