19343
Four new carbazole alkaloids ( 1 - 4 ) and fourteen known carbazole alkaloids ( 5 - 18 ) were isolated from Murraya koenigii .
 Chemical: carbazole alkaloids; Chemical: carbazole alkaloids
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: carbazole alkaloids; Chemical: carbazole alkaloids