3987
Experiments with analogues and derivatives of CCK - 5 - 8 demonstrated that the effectiveness of the beta - alanyl derivatives of CCK - 5 - 8 were enhanced and that they were equipotent with CCK - 8 - SE .
 Chemical: CCK - 8
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: CCK - 8