14359
Abstract Background and objectives : Vesicles , recently claimed as drug delivery carriers , were prepared by taking advantage of an electrostatic interaction between the carboxylic groups of fatty acids ( FAs ) and the amino groups of N - [ 3 - ( Dimethylamino ) propyl ] - Octadecanamide ( DMAPODA ) .
 Chemical: carboxylic; Chemical: fatty acids; Chemical: amino; Chemical: N - [ 3 - ( Dimethylamino ) propyl ] - Octadecanamide; Chemical: DMAPODA
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: carboxylic, fatty acids, amino, N - [ 3 - ( Dimethylamino ) propyl ] - Octadecanamide, DMAPODA 
Answer:
 Chemical: carboxylic; Chemical: fatty acids; Chemical: amino; Chemical: N - [ 3 - ( Dimethylamino ) propyl ] - Octadecanamide; Chemical: DMAPODA