18364
We found that the increased levels of OPN in bone tissue of Alpl ( - / - ) mice are comprised of phosphorylated forms of OPN while WT and [ Col1a1 - Tnap ( + / - ) ; Alpl ( - / - ) ] mice had both phosphorylated and dephosphorylated forms of OPN .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None