Definition: Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.
Input: Sentence: '9:6 to Jesus of Nazareth as the Messiah , as the son of David , the NT is not only in typological harmony , but is also consistent with the exegetical meaning of the Micaian and Isaianic Ahaz oracles , because Jesus was the son of David , begotten of God not only covenantally as David , but also as the uniquely-begotten Son of the God of heaven .', Argument/Subject 1: 'jesus', Argument/Subject 2: 'david'
Output:
be son of