Sequential-NIAH: A Needle-In-A-Haystack Benchmark for Extracting Sequential Needles from Long Contexts. - Yifei Yu; Qian-Wen Zhang; Lingfeng Qiao; Di Yin; Fang Li; Jie Wang; Chen Zeng Xi; Suncong Zheng; Xiaolong Liang; Xing Sun 001 (EMNLP, 2025)