14785
It is clearly seen from the optimised structure of the 2 : 1 ( CB7 . CPT ) inclusion complex that the quinoline nitrogen of CPT does not reside within either of the CB7 cavities , rather it is almost sandwiched between two CB7 rings , and therefore , it experiences huge electron density exerted by both carbonyl portals of the macrocycles .
 Chemical: CB7; Chemical: CPT; Chemical: quinoline nitrogen; Chemical: CPT; Chemical: CB7; Chemical: CB7; Chemical: carbonyl
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: CB7; Chemical: CPT; Chemical: quinoline nitrogen; Chemical: CPT; Chemical: CB7; Chemical: CB7; Chemical: carbonyl