Second, when class labels are treated as though they cannot be decomposed, every class label must be modeled independently, even those containing overlapping words ("American jazz musician", "French jazz musician").
the "universal schema" approach (Riedel et al., 2013;Kirschnick et al., 2016;Verga et al., 2017), which infers relations using matrix factorization, often includes Hearst patterns as input features.