Here is my proposed model for the FFEHR

Those within the square brackets are the leaves/attributes of a particular class/branches. Those that are placed after 'INCLUDE' define “inheritance” or subclasses. In the database, these relationships will be defined by the table ClassHierarchy?. Those that are placed after 'HAVE' define “composition” or has-a relationships. In the database, these relationships will be defined by the table Attribute.