1458
Twenty - four hours later , the animals were randomized to subretinal treatment with 2 . 5 micrograms of tissue plasminogen activator or a similar volume of physiologic saline .
 GENE: tissue plasminogen activator
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: tissue plasminogen activator 
Answer:
 GENE: tissue plasminogen activator