Source: Schema.org v30.1 vocabulary. Official line property definition.
What does line mean?
A line is a point-to-point path consisting of two or more points. A line is expressed as a series of two or more point objects separated by space.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status