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.
One example: Sentence: 'Harry glanced again at the raw looking thing that trembled and choked in the shadow beneath the distant chair.', Argument/Subject 1: 'Harry', Argument/Subject 2: 'raw looking thing'
Solution is here: glance
Explanation: The sentence contains the generated relationship - glance, mentioned between two subjects - Harry and raw looking thing

Now, solve this: Sentence: 'One of the fundamental beliefs of most Christian branches is that Jesus is the Son of God .', Argument/Subject 1: 'jesus', Argument/Subject 2: 'god'
Solution:
be son of