The origins and evolutionary relationships between the three main groups of amphibians is a matter of debate.
ðɪ ˈɔːɹɪdʒˌɪnz ænd ˌɛvəlˈuːʃənˌɛɹi ɹᵻlˈeɪʃənʃˌɪps bᵻtwˌiːn ðə θɹˈiː mˈeɪn ɡɹˈuːps ʌv æmfˈɪbiənz ɪz ɐ mˈæɾɚɹ ʌv dᵻbˈeɪt.