letter of protest /lˈɛɾɚɹ ʌv pɹˈoʊtɛst/ /lˈɛtəɹ ɒv pɹˈəʊtɛst/
protest letter /pɹˈoʊtɛst lˈɛɾɚ/ /pɹˈəʊtɛst lˈɛtə/
