In this task, you will be presented with a context from an academic paper and a question separated with a
. You have to answer the question based on the context.

$LS \cup KLD \cup CONN$ and $KLD \cup LS \cup LS_{inter}$ are the best systems with the highest recall and F1-score respectively.
Question: What was previous state-of-the-art approach?
TextCNN, TextRNN, SASE, DPCNN, and BERT $LS \cup KLD \cup CONN$ and $KLD \cup LS \cup LS_{inter}$ are the best systems with the highest recall and F1-score respectively