23974
Overnight incubation of antigen presenting cells with abacavir , followed by repeated washing to remove soluble drug , activated approximately 50 % of the clones , and the response was blocked by glutaraldehyde fixation .
 Chemical: abacavir; Chemical: glutaraldehyde
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: abacavir; Chemical: glutaraldehyde