//! The project → site → building → storey → element tree.
//!
//! ## Internal split
//!
//! - `kind.rs`: classifying an entity's place in the spatial hierarchy.
//! - `build.rs`: assembling the tree from relationship entities.
//! - `anomaly.rs`: conflicting parents the file states.
pub use SpatialAnomaly;
pub use ;
pub use SpatialKind;