The different colors neon lamps can make.
ð ə WORD_BOUNDARY d ɪ f ɹ ə n t WORD_BOUNDARY k ʌ l ə ɹ z WORD_BOUNDARY n iː ɑ n WORD_BOUNDARY l æ m p s WORD_BOUNDARY k æ n WORD_BOUNDARY m eɪ k WORD_BOUNDARY