For the +ADJ, +SENT, and +STYLE MRs, each MR is a longer relational tuple, with additional style feature information to encode, such that an input sequence x 1:S = (f attr , f val , f 1:N ), and where each f n is an additional feature, such as adjective or mention order.
in the case of +STYLE MRs, the additional features may be sentence-level features, such as sentiment, length, or exclamation.