5321
OBJECTIVES : 1 ) to determine serum ACE activity in patients with COPD treated with and without continuous ambulatory oxygen therapy ( CAOT ) ; 2 ) to verify whether there is a correlation between ACE and any hematological , spirometric or gasometric parameter .
 GENE: serum ACE; GENE: ACE
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: serum ACE, ACE 
Answer:
 GENE: serum ACE; GENE: ACE