#surface_area__surfacearea__area__expanse  the extent of a 2-dimensional surface enclosed within a boundary; "the area of a rectangle"; "it was about 500 square feet in area"
  exclusion:  width  height  length  circumference  diameter  volume  thickness  tenuity  angle
  supertype:  spatial_characteristic (menu)  extent
  subtype:  acreage__landarea  an area of ground used for some particular purpose (such as building or farming); "he wanted some acreage to build on"
  subtype:  blank_space__blankspace__space__place  a blank area; "write your name in the space provided"
     subtype:  margin  the blank space that surrounds the text on a page
     subtype:  indentation.blank_space__indenture  the space left between the margin and the start of an indented line
  subtype:  space.surface_area  one of the areas between or below or above the lines of a musical staff; "the spaces are the notes F-A-C-E"
  subtype:  area_unit__square_measure  a system of units used to measure areas
     subtype:  square_inch__sq_in  a unit of area equal to one inch by one inch square
     subtype:  square_foot__sq_ft  a unit of area equal to one foot by one foot square
     subtype:  square_yard__sq_yd  a unit of area equal to one yard by one yard square
     subtype:  square_meter__square_metre__centare  a centare is 1/100th of an are
     subtype:  square_mile  an area of 640 acres
        subtype:  section.square_mile  a land unit of 1 square mile measuring 1 mile on a side
     subtype:  quarter_section__quartersection  a land unit equal to a quarter of a section (160 acres) and measuring 1/2 mile on a side
     subtype:  acre  a unit of area (4840 square yards) used in English-speaking countries
     subtype:  are  a unit of surface area equal to 100 square meters
     subtype:  hectare  (abbreviated `ha') a unit of surface area equal to 100 ares (or 10,000 square meters)
     subtype:  arpent  a former French unit of area; equal approximately to an acre
     subtype:  b  (atomic or nuclear physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
     subtype:  dessiatine  a former Russian unit of area equal to 2.7 acres
     subtype:  morgen  a South African unit of measure equal to about 2 acres
     subtype:  perch.area_unit__rod  a square rod of land
     subtype:  em__mutton__mut  the square of a body of any size of type
     subtype:  agate_line__agateline__line  space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
     subtype:  column_inch__inch  a unit of measurement for advertising space

1 statement is about a direct instance of surface_area: graph1_on_country
No  statement uses a specialization of surface_area; click here to add a statement.