#!/bin/sh

filter() {
  sort -u                                     \
  | comm -23 - working/known-upper.lst        \
  | comm -23 - r/special/not-upper
}

cat working/all.lst | grep "^[A-Z]"           \
  | comm -23 - working/abbreviations.lst.pre  \
  | cat - l/proper-names/*                    \
  | filter                                    \
  | src/add-other-spellings                   \
  | src/find-ss working/all.lst               \
  | sed "s/^\(.*\)'s\$/\1/"                   \
  | src/filter                                \
  | filter                                    \
  | sed "s/^\(.*\)/\1 \1's/"                  \
  | tr ' ' '\n'                               \
  | sort -u                                   \
  > working/proper-names.lst