Given the task definition and input, reply with output. 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.

Sentence: 'When brothers John and James McNamara were arrested in 1911 for the planting dynamite at the Times as well as at the Lewellyn Iron Works , labor and radical activists from Samuel Gompers to Eugene Debs staked their own credibility on the brothers ' innocence .', Argument/Subject 1: 'jame', Argument/Subject 2: 'john'
be brother of