6832
Samples were pressure - treated at 300 and 500 MPa and were stored at 3 . 5 and 12 degrees C for up to 28 days ( control - - 0 MPa ) and 42 or 70 days ( pressure - treated ; 12 and 3 . 5 degrees C resp . ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None