one fable-low hijack cell
pair carbon / coal
envelope en_pipe
ordering BA
effort low
English with pipe '|' — '{X} | {Y}'
verdictpicked carbon (first-offered)
· classifierA
· tiernone
response (200 chars)
**Coal and carbon** are closely related:
- **Coal is composed primarily of carbon** — it forms over millions of years as buried plant matter is compressed and heated, concentrating its carbon content
neighbors