4073
Five phenotypic characteristics - - locomotor activity , righting ability , clonic seizure induction , stress - induced lethality , death without external stress - - were scored at various caffeine doses in drug - naive animals under empirically optimized , rigidly constant experimental conditions .
 Disease: clonic seizure; Chemical: caffeine
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:
 Disease: clonic seizure; Chemical: caffeine