14223
The stability test found that PPT was instable in the stomach with 40 % degradation after 4h incubation at 37 degrees C , both in pH1 . 2 buffer and in the stomach content solution .
 Chemical: PPT
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: PPT