PERSON@1 , PERSON@2 , PERSON@3 , PERSON@4 , S. S. General Chemistry , 4th ed. , NUMBER@1 , ORGANIZATION@1 , LOCATION@1 , LOCATION@2 , NUMBER@2 .

PERSON@1 , PERSON@2 , PERSON@3 , PERSON@4 , S. S. General Chemistry , 4th ed. , NUMBER@3 , ORGANIZATION@1 , LOCATION@1 , LOCATION@2 , NUMBER@2 .
