Assertion: burgundy's marriage | /r/CapableOf | produce only one surviving child
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Source sentences:
text: The marriage of Duke Odo and Countess Joan in 1318 produced only one surviving child, Philip; he married another Joan, the heiress of Auvergne and Boulogne, but they again only produced a single surviving child, Philip I, Duke of Burgundy, also known as Philip of Rouvres.