4170
Extensive experimental and limited clinical data have shown that lometrexol has activity against tumours which are refractory to other drugs , notably methotrexate .
 Chemical: lometrexol; Disease: tumours; Chemical: methotrexate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: lometrexol; Disease: tumours; Chemical: methotrexate