Relation pm#where_relation__whererelation (*)  where, from/to where, ...
  supertype:  wh-/how_relation  this type permits to categorize relations according to the usual who/what/why/where/when/how questions ; this is a traditional but very subjective and ineffective way of categorizing relations 
  subtype:  from/to (situation,entity)
     subtype:  source (situation,causal_entity)
     subtype:  recipient (situation,entity)
        subtype:  beneficiary (situation,causal_entity)
     subtype:  from/to_place__from/toplace (process -> spatial_object)
        subtype:  from_place (process -> spatial_object)
        subtype:  to_place__destination (process -> spatial_object)
        subtype:  via_place__viaplace__via (process -> spatial_object)
        subtype:  path (process -> spatial_object)
     subtype:  origin__from (process,object)  the 2nd argument (which must be present at least at the beginning of the process) indicates where the process began; for example, the submarine is the origin in 'the missile was launched from a submarine'
     subtype:  destination__to (process,entity)  the 2nd parameter is the target or goal of the process; for example, Danbury would be the destination in 'Bob went to Danbury'; this is a very general case_role which, in particular, that it covers the concepts of 'recipient' and 'beneficiary'; thus, John would be the destination in 'Tom gave a book to John'
  subtype:  place (situation -> spatial_object)
  subtype:  path_length (process -> spatial_attribute_or_quality_or_measure)
  subtype:  within_group (situation,collection)
  subtype:  relation_to_another_spatial_object (spatial_object,spatial_object)
     subtype:  location (spatial_object,spatial_object)
        subtype:  address__addres (spatial_object -> spatial_object)
           subtype:  main_address (spatial_object -> spatial_object)
           subtype:  secondary_address__secondaryaddres (spatial_object -> spatial_object)
        subtype:  above (spatial_object -> spatial_object)
           subtype:  on (spatial_object -> spatial_object)
        subtype:  below (spatial_object,spatial_object)
        subtype:  near (spatial_object -> spatial_object)
           subtype:  touching (spatial_object -> spatial_object)
        subtype:  far_from__farfrom (spatial_object,spatial_object)
        subtype:  exterior__in (spatial_object -> spatial_object)
        subtype:  interior (spatial_object,spatial_object)
        subtype:  before_location__before (spatial_object,spatial_object)
     subtype:  spatial_part__spatialpart (spatial_object,spatial_object)
        subtype:  physical_part (physical_entity,physical_entity)
  subtype:  spatial_origin__spatialorigin (?,?)
     subtype:  cuisine_origin__cuisineorigin (?,?)