- Implemented aggregation functions in `examples/aggregations.ts` demonstrating COUNT, SUM, AVG, MIN, MAX, GROUP_CONCAT, and SAMPLE. - Created complex query patterns in `examples/complex.ts` showcasing relationships, multi-hop traversal, optional patterns, and union queries. - Introduced a SPARQL query builder in `mod.ts` for type-safe query construction. - Enhanced utility functions in `utils.ts` for SPARQL operations, including aggregation functions and expression helpers. Signed-off-by: Okiki Ojo <hey@okikio.dev>