However, in 1819 the United States had by <e1>statute</e1> declared the slave <e2>trade</e2> to be piracy and subject to the death penalty.
However, in 1819 the
However, in 1819 the United States had by statute declared the slave trade to be piracy and subject to the death penalty.
<triplet> statute <subject> trade <object> Message-Topic(e1,e2)