7952
In addition , compound 28 was the most effective ( 0 . 03 and 0 . 12 mu g / ml ) against erythromycin - susceptible S . pneumoniae and Staphylococcus aureus as well .
 Chemical: erythromycin
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: erythromycin