Can someone help with cardinality and participation status? Below is an E-R (Entity Relationship) Diagram that I am working on.

Section PK c code PK sec no PK year complete date offered by format Person Position PK per id PK pos code emp mode required skill pay rate pay type cate code name Compan zip code comp id zip code phone primary_sector Additional relationships hires comp id, per id) has(comp id, cate code) PK g code requires level description status Job_category Knowled PK ks code itie pay range high pay range low (core skill) description