4173
This observation prompted a Phase I clinical study of lometrexol given with folic acid supplementation which has confirmed that the toxicity of lometrexol can be markedly reduced by folic acid supplementation .
 Chemical: lometrexol; Chemical: folic acid; Disease: toxicity; Chemical: lometrexol; Chemical: folic acid
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; Chemical: folic acid; Disease: toxicity; Chemical: lometrexol; Chemical: folic acid