28083
One notable modification of oxygen theory was provided by Jöns Jacob Berzelius , who stated that acids are oxides of nonmetals while bases are oxides of metals .
 Jöns Jacob Berzelius
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jöns Jacob Berzelius