PERSON@1 -LRB- February NUMBER@1 , NUMBER@2 -- August NUMBER@3 , NUMBER@4 -RRB- was an MISC@1 chemist , peace activist , author , and educator .

PERSON@1 -LRB- February NUMBER@1 , NUMBER@2 -- August NUMBER@3 , NUMBER@4 -RRB- was an MISC@1 scientist , peace activist , author and educator .
