Development and Evaluation of a Dual-Expertise, Utterance-Level Framework for LLM-Based Science Classroom Discourse Analysis. - Jin Eun Yoo; Nam-Hwa Kang; Suna Ryu; Jun-ki Lee; Youngsun Kwak; Taeuk Kim; Hyeong Gwan Kim; Youngwoo Shin; Uiji Hwang (LAK, 2026)