//! The project → site → building → storey → element tree.
//!
//! ## Internal split
//!
//! - `kind.rs`: classifying an entity's place in the spatial hierarchy,
//! against the declared release's schema table.
//! - `build.rs`: assembling the tree from relationship entities.
//! - `anomaly.rs`: conflicting parents and non-container structures the
//! file states.
//! - `reference.rs`: elements referenced, not contained, by a structure.
pub use SpatialAnomaly;
pub use ;
pub use SpatialKind;