The retrieval layer uses three strategies—template Cypher, edge-filter Cypher, and Text2Cypher from NLP to Cypher—so that graph retrieval can be performed through multiple query-generation methods.

3-strategy retrieval:

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

template Cypher

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

edge-filter Cypher

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Text2Cypher (NLP→Cypher)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md