-(defvar +relationship-abbreviations+
- '(("RB" "Broader" "has a broader relationship")
- ("RN" "Narrower" "has a narrower relationship")
- ("RO" "Other related" "has relationship other than synonymous, narrower, or broader")
- ("RL" "Like" "the two concepts are similar or 'alike'. In the current edition of the Metathesaurus, most relationships with this attribute are mappings provided by a source")
- ("RQ" "Unspecified" "unspecified source asserted relatedness, possibly synonymous")
- ("SY" "Source Synonymy" "source asserted synonymy")
- ("PAR" "Parent" "has parent relationship in a Metathesaurus source vocabulary")
- ("CHD" "Child" "has child relationship in a Metathesaurus source vocabulary")
- ("SIB" "Sibling" "has sibling relationship in a Metathesaurus source vocabulary")
- ("AQ" "Allowed" "is an allowed qualifier for a concept in a Metathesaurus source vocabulary")
- ("QB" "Qualified" "can be qualified by a concept in a Metathesaurus source vocabulary")))