code: public static Set<String> lowercaseLines(final Class<?> origin, final String resource) throws IOException {
          return ImmutableSet.copyOf(new HashSet<String>() {{
              readResource(origin, resource, new NullReturnLineProcessor() {
                  @Override
                  public boolean processLine(@Nonnull final String line) {
                      final String l = simplify(line);
                      // add to the containing HashSet we are currently in the init block of
                      if (!l.startsWith("#") && !l.isEmpty()) add(toEngLowerCase(l));
                      return true;
                  }
              });
          }});
      }
docs: Return a Set containing trimmed lowercaseLines read from a file, skipping comments.