Cumulonimbus Cloud
Table:
Cumulonimbus Cloud
Abbreviation	Cb
Genus	Cumulonimbus (heaped, rain)
Species

Calvus
Capillatus

Variety	None
Altitude	500-16,000 m
(2,000-52,000 ft)
Classification	Family C (Low-level)
Appearance	Very tall and large clouds
Precipitation cloud?	Very common, heavy at times

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

Assertion: Calvus clouds are the most common species of cumulonimbus cloud.

answer: neutral