HOW TO READ THE BELOW DIAGRAM CAN YOU PLEASE EXPLAIN IN DETAIL?

(a) PATIENT TREATMENT ternary relationship with associative entity PHYSICIAN Physician ID Physician Name PATIENT TREATMENT PATIENT Patient ID Patient Name TREATMENT Treatment Code Treatment Description PTreatment Date PTreatment Time PTreatment Results (a) PATIENT TREATMENT ternary relationship with associative entity PHYSICIAN Physician ID Physician Name PATIENT TREATMENT PATIENT Patient ID Patient Name TREATMENT Treatment Code Treatment Description PTreatment Date PTreatment Time PTreatment Results