Islero
Table:
Islero

Species	Spanish Fighting Bull
Breed	Miura
Sex	Male
Born	Seville, Andalusia, Spain
Nation from	Spain
Known for	Gored and killed Manolete
Owner	Eduardo Miura Fernández
Weight	495 Kg

With reference to the table, assess whether the statement is entailed, neutral, or refuted. Conclude with JSON {"answer": "YOUR ANSWER"} — nothing else.

Assertion: Islero is a fighting dog that weighs less an a human being.

answer: refuted