--- /dev/null
+#!/bin/sh
+
+cat working/words.`src/get-level max` \
+ | grep "'" | grep -v "'s$" | grep -v "^[A-Z]'[A-Z]" \
+ | comm -23 - r/special/not-upper \
+ | comm -23 - working/proper-names.lst \
+ | comm -23 - working/abbreviations.lst \
+ > working/contractions.lst
+
+