Altostratus undulatus cloud
Table:
Altostratus undulatus cloud

Cirrus and Altostratus undulatus clouds

Abbreviation	As
Genus	Alto- (high), -stratus (layered)
Species	undulatus (waves)
Altitude	2400-6100 m
(8,000-20,000 ft)
Classification	Family B (Medium-level)
Appearance	Wavy, like ripples in a pond
Precipitation	Usually no

Looking at the table, decide if the statement is entailed, neutral, or refuted by the data. Output only the JSON object {"answer": "YOUR ANSWER"}.

Claim: Clouds have a classification system.

answer: neutral