Pre-release. This site describes standard version 0.7.0-dev, which is in development and may change before version 1.0.0.
How much water the tree gets per watering, in buckets of about twenty litres.
20 to 40 litres (one to two buckets)
Less than 20 litres (under one bucket)
More than 40 litres (over two buckets)
This page explains the standard and does not decide conformance: only the released corpus does. It describes glossary/observation-schemes.ttl at standard version 0.7.0-dev.