one fable-low hijack cell
pair datalog / mercury
envelope en_vs
ordering BA
effort low
English 'vs' framing — '{X} vs {Y}'
verdictpicked mercury (second-offered)
· classifierB
· tiernone
response (200 chars)
# Datalog vs Mercury
Both are logic programming languages, but they serve very different purposes.
## Datalog
**What it is:** A declarative query language, a syntactic subset of Prolog designed for
neighbors