Instruct: Classify the given comments as either toxic or not toxic
Query: The generation of astronauts who took the Moon missions represent the best of Americans. Educated in science, engineering or aeronautics, they were courageous explorers who knew their lives could end in a split second. They accomplished the 'impossible'. 

RIP esteem Commander Gene Cernan. You set fine example for future explorers. 

The next generation of Moon manned mission explorers and lander will be Chinese. It will happen before this decade is out. Congratulations China. Good to see your country return to global leadership after 3 centuries of painful absence.