dl#region__R  the measure of an attribute/dimension
  exclusion:  fact  set
  supertype:  physical_quantity (pm)  abstract
  related_to:  region (dl)
  q_location of=>  quality
  generic_location of=>  entity
  subtype:  quale
  subtype:  space_region__spaceregion__S
     subtype:  spatio_temporal_region
  subtype:  temporal_region__TR  a value for a temporal quality, e.g., 24/5/2002, 2 seconds
     subtype:  time_interval__T
        subtype:  unit_of_time_duration  the class of all unit of measures used to measure time, e.g., minute, second, hour, etc.
           subtype:  time_unit__unit_of_time  a unit for measuring time periods
              subtype:  day__meansolarday__twenty-four_hours__solar_day  time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day"
              subtype:  night.time_unit  the dark part of the diurnal cycle considered a time unit; "three nights later he collapsed"
              subtype:  mean_time__mean_solar_time  (astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator)
              subtype:  terrestrial_time__terrestrialtime__tt__terrestrial_dynamical_time__terrestrialdynamicaltime__TDT__ephemeris_time__ephemeristime  (astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions
              subtype:  month  a time unit of 30 days; "he was given a month to pay the bill"
                 subtype:  lunar_month__moon__lunation__synodic_month__synodicmonth  the period between successive new moons (29.531 days)
                 subtype:  anomalistic_month  period between successive perigees; approximately 27.5546 days
                 subtype:  sidereal_month  period between successive conjunctions with a star, 27.322 days
                 subtype:  solar_month__solarmonth  one-twelfth of a solar or tropical year
              subtype:  sidereal_day__day  the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
              subtype:  ship's_bell__bell  (nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.
              subtype:  hour__hr__60_minutes  a period of time equal to 1/24th of a day; "the job will take more than an hour"
                 subtype:  sidereal_hour  1/24 of a sidereal day
                 subtype:  man_hour__manhour__personhour  a time unit used in industry for measuring work
              subtype:  half-hour__30_minutes  a half of an hour
              subtype:  quarter-hour__quarterhour__15_minutes  a quarter of an hour
              subtype:  minute__min  a unit of time equal to 60 seconds or 1/60th of an hour; "he ran a 4 minute mile"
              subtype:  quarter.time_unit  a unit of time equal to 15 minutes or a quarter of an hour; "it's a quarter til 4"; "a quarter after 4 o'clock"
              subtype:  second__s____sec  1/60 of a minute; the basic unit of time adopted under the System International d'Unites
                 subtype:  leap_second  a second (as measured by an atomic clock) added to or subtracted from Greenwich Mean Time in order to compensate for slowing in the Earth's rotation
              subtype:  millisecond  one thousandth of a second
              subtype:  attosecond  one quintillionth of a second; one thousandth of a femtosecond
              subtype:  femtosecond  one quadrillionth of a second; one thousandth of a nanosecond
              subtype:  picosecond  one trillionth of a second; one thousandth of a nanosecond
              subtype:  nanosecond  one billionth of a second; one thousandth of a microsecond
              subtype:  microsecond  one millionth of a second; one thousandth of a millisecond
           instance:  time-measure-second__timemeasuresecond__second  time-measure-minute__minute  time-measure-hour__hour  time-measure-day__day  time-measure-month__month
        subtype:  time_duration  any measure of length of time, with or without respect to the universal timeline
           instance:  twentyfour-hour-duration__24_hour_duration  seven-day-duration__sevendayduration__7_day_duration__7dayduration  twentyeight-day-duration__twentyeightdayduration__28_day_duration  twentynine-day-duration__29_day_duration  thirty-day-duration__30_day_duration  thirtyone-day-duration__thirtyonedayduration__31_day_duration  twelve-month-duration__12_month_duration
        subtype:  date
     subtype:  time_position  any time_point or time_interval along the universal timeline from negative_infinity to positive_infinity
        subtype:  time_interval  a time_interval has both an extent and a location on the universal timeline; a time_interval has no gaps, i.e. this class contains only convex time intervals
           subtype:  Day
           subtype:  Week
           subtype:  Month
           subtype:  Year
        subtype:  time_point  the time_points at which processes occur can be known with various degrees of precision and approximation, but conceptually time_points are point-like and not interval-like; that is, it doesn't make sense to talk about how long a time_point lasts
           subtype:  Calendar-Date  a point in time 
  subtype:  physical_region__PR  e.g., 2 meters, 3.5 kg, [2-3] hz
     subtype:  space_region__spaceregion__S
     subtype:  volume
  subtype:  abstract_region__AR  e.g., 2 US dollars

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