4014
I think Optics Letters is probably the one that we 're shooting for , or else , perhaps , though I do n't think it 's quite that significant , would be Phys Rev Letters .
 organization: Optics Letters; organization: Phys Rev Letters
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 organization: Optics Letters; organization: Phys Rev Letters