SRL for [deteriorated]: Despite the harsh exchanges , the U.S. and China still seem to be looking for a way to mend relations , which have [deteriorated] into what Mr. Nixon referred to as `` the greatest crisis in Chinese - American relations '' since his initial visit to China 17 years ago .
ARG-1: relations | R-ARG-1: which | ARG-2: into what Mr. Nixon referred to as `` the greatest crisis in Chinese - American relations '' since his initial visit to China 17 years ago