Scheme_arm
short long

e	Scheme
d	Scheme_date_or_date_time_item
e	Scheme_entry
e	Scheme_entry_assignment
d	Scheme_entry_item_select
e	Scheme_entry_relationship
d	Scheme_person_organization_select
e	Scheme_relationship
e	Scheme_subject_assignment
d	Scheme_subject_select
e	Scheme_version
e	Scheme_version_assignment
e	Scheme_version_relationship
d	Scheme_version_select
e	Sequencing_relationship