4349
From October 1993 to November 1995 , we treated 13 patients with previously chemotherapy - treated metastatic breast cancer by mitoxantrone , 12 mg / m2 , on day 1 and continuous infusion of 5 - FU , 3000 mg / m2 , together with leucovorin , 300 mg / m2 , for 48 h from day 1 to 2 .
 Disease: breast cancer; Chemical: mitoxantrone; Chemical: 5 - FU; Chemical: leucovorin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: breast cancer, mitoxantrone, 5 - FU, leucovorin 
Answer:
 Disease: breast cancer; Chemical: mitoxantrone; Chemical: 5 - FU; Chemical: leucovorin