6250
Together with a considerably shortened and interrupted aromatic aa stretch in this region , these differences are discussed in terms of the peculiar affinity of cyanobacterial cytochrome oxidases for acidic c - type cytochromes .
 GENE: cyanobacterial cytochrome oxidases; GENE: c - type cytochromes
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: cyanobacterial cytochrome oxidases, c - type cytochromes 
Answer:
 GENE: cyanobacterial cytochrome oxidases; GENE: c - type cytochromes