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Use "brothers-in-law" in a sentence
"The interlocking drama of two brothers-in-law whose associations with al Qaeda in the 1990s propelled them on divergent courses."
"The two are brothers-in-law and fought with metal pipes."
"These events led to Owain being proclaimed Prince of Wales on September 16, 1400, by a small band of followers which included his eldest son, his brothers-in-law, and the Dean of St. Asaph."