6999
Electronmicroscopy clearly showed that ceftazidime 3 mu g / ml in combination with 3 mu g / ml of apigenin also caused marked morphological damage of cell wall , cell shape and plasma membrane of this strain .
 Chemical: ceftazidime; Chemical: apigenin
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: ceftazidime; Chemical: apigenin