Before revision:  In this work, we leverage the idea of graph pooling and propose the Mirror Graph Convolution Network (MrGCN) , a GNN model with  pooling-unpooling structures tailored to relation extraction .
After revision:  In this work, we leverage the idea of graph pooling and propose the Mirror Graph Convolution Network (MrGCN) , a GNN model with pooling-unpooling structure tailored to RE tasks .