669
Headache relief at 2 h was 75 . 9 % for rizatriptan and 47 . 3 % for ergotamine / caffeine ( p < or = 0 . 001 ) , with rizatriptan being superior to ergotamine / caffeine within 30 min of dosing .
 Disease: Headache; Chemical: rizatriptan; Chemical: ergotamine; Chemical: caffeine; Chemical: rizatriptan; Chemical: ergotamine; Chemical: caffeine
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: Headache, rizatriptan, ergotamine, caffeine, rizatriptan, ergotamine, caffeine 
Answer:
 Disease: Headache; Chemical: rizatriptan; Chemical: ergotamine; Chemical: caffeine; Chemical: rizatriptan; Chemical: ergotamine; Chemical: caffeine