1/* @(#)ndtabl.pl	24.1 2/23/88 */
    2
    3/* 
    4	Copyright 1986, Fernando C.N. Pereira and David H.D. Warren,
    5
    6			   All Rights Reserved
    7*/
    8% NDTABL - Meta-information about database relations.
    9
   10:-mode
   11   nd(+,-,-),
   12   nd(+,-,-,-),
   13   nd(+,-,-,-,-).
   14
   15nd(african,19,26).
   16nd(american,19,26).
   17nd(area,51,51).
   18nd(area,22,22,51).
   19nd(asian,21,26).
   20nd(aggregate,103,3,100,51).
   21nd(one_of,99,200,-99).
   22nd(ratio,99,51,51,3).
   23nd(card,99,100,3).
   24nd(borders,29,22,22).
   25nd(capital,22,22).
   26nd(capital,22,22,23).
   27nd(city,18,18).
   28nd(continent,8,8).
   29nd(country,22,22).
   30nd(drains,16,16,10).
   31nd(eastof,40,22,22).
   32nd(european,19,26).
   33nd(exceeds,99,51,51).
   34nd(flows,19,16,22).
   35nd(flows,19,16,22,22).
   36nd(in,29,26,15).
   37nd(latitude,23,23).
   38nd(latitude,22,22,23).
   39nd(longitude,26,26).
   40nd(longitude,22,22,26).
   41nd(northof,40,22,22).
   42nd(ocean,7,7).
   43nd(population,51,51).
   44nd(population,23,23,51).
   45nd(region,12,12).
   46nd(rises,16,16,22).
   47nd(river,16,16).
   48nd(sea,8,8).
   49nd(place,23,23).
   50nd(seamass,10,10).
   51nd(southof,40,22,22).
   52nd(westof,40,22,22).
   53nd(=<,99,51,51).
   54nd(<,99,51,51).
   55nd(>,99,51,51).
   56nd(>=,99,51,51)