Relation pm#relation_from_restriction (restriction,*)
  supertype:  relation_from_class
  subtype:  on_property (restriction,binary_relation_type)  for onProperty(?restrClass,?rel), read: ?restrClass is a restricted with respect to property ?rel
  subtype:  all_values_from (restriction,class)  for onProperty(?restrClass,?rel) and toClass(?restrClass,C), read: i instance of ?restrClass if and only if for all j, ?rel(i,j) implies type(j,C)
  subtype:  has_value__hasvalue (restriction,?)  for onProperty(?restrClass,?rel) and hasValue(?restrClass,V), read: i instance of ?restrClass if and only if ?rel(i,V), i.e. if and only if any ?rel from ?i has for destination an instance of C; toValue is an obsolete name
  subtype:  some_values_from (restriction,class)  for onProperty(?restrClass,?rel) and some_values_from(?restrClass,C), read: i instance of ?restrClass if and only if for some j, ?rel(i,j) and type(j,C), i.e. if and only if i has at least one ?rel which has for destination an instance of C
  subtype:  has_class_q__hasclassq (restriction,class)  property for specifying class restriction with cardinalityQ constraints
  subtype:  cardinality (restriction -> nonnegative_integer)  for onProperty(?restrClass,?rel) and cardinality(?restrClass,n), read: i instance of ?restrClass if and only if there are exactly n distinct j with ?rel(i,j)
  subtype:  cardinality_q__cardinalityq (restriction -> nonnegative_integer)  for onProperty(?restrClass,?rel), cardinalityQ(?restrClass,n) and hasClassQ(?restrClass,C), read: i instance of ?restrClass if and only if there are exactly n distinct j with ?rel(i,j) and type(j,C)
  subtype:  min_cardinality__mincardinality (restriction -> nonnegative_integer)  for onProperty(?restrClass,?rel) and minCardinality(?restrClass,n), read: i instance of ?restrClass if and only if there are at least n distinct j with ?rel(i,j)
  subtype:  min_cardinality_q__mincardinalityq (restriction -> nonnegative_integer)  for onProperty(?restrClass,?rel), minCardinalityQ(?restrClass,n) and hasClassQ(?restrClass,C), read: i instance of ?restrClass if and only if there are at least n distinct j with ?rel(i,j)
  subtype:  max_cardinality__maxcardinality (restriction -> nonnegative_integer)  for onProperty(?restrClass,?rel) and maxCardinality(?restrClass,n), read: i instance of ?restrClass if and only if there are at most n distinct j with ?rel(i,j)
  subtype:  max_cardinality_q__maxcardinalityq (restriction,nonnegative_integer)  for onProperty(?restrClass,?rel), maxCardinalityQ(?restrClass,n) and hasClassQ(?restrClass,C), read: i instance of ?restrClass if and only if there are at most n distinct j with ?rel(i,j) and type(j,C)