Relationships

Builds agent networks after venue allocation is complete. Two separate pipelines are configured here: social networks (friendship/contact graphs) and romantic relationships (sexual orientation and partnerships).

File	Purpose
social_networks.yaml	Defines one or more social contact networks using a networks: list; each entry specifies pool type, algorithm, contact counts, and constraints
romantic_relationships.yaml	Sexual orientation assignment and partnership formation; supports ONS-derived per-MSOA probabilities or YAML-only fallback