1945
Lithium is also a potent inhibitor of glycogen synthase kinase - 3 beta ( GSK3 beta ) activity , which is linked to Alzheimer ' s disease ( AD ) .
 Chemical: Lithium
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: Lithium