Tag 'backend' and 'frontend' as nouns instead of verbs

tests/two/match/two-match-examples.test.js

@@ -1179,6 +1179,10 @@ const arr = [
   ['http://cool.com', '!#SlashedTerm'],
   ['love / hate', '!#SlashedTerm'],
   ['his/her backpack', '(#Pronoun && #SlashedTerm) #Noun'],
+
+  ['Developed backend for real-time AI communication', '. #Singular for #Adjective #Noun #Acronym #Noun'],
+  ['frontend', '#Singular'],
+  ['backend developers', '#Singular #Plural'],
   // ['', ''],
 ]
 test('match:', function (t) {