Assertion: henry's brother | /r/CapableOf | post to london./let noble warwick
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Source sentences:
text: In Act 1, Scene 2, upon realising that Margaret is set to attack, York sends Montague to London to get Warwick; "My brother Montague shall post to London./Let noble Warwick, Cobham, and the rest/Whom we have left protectors of the King,/With powerful policy strengthen themselves" (ll.55–58).