Universal 204:

Original: No set of case marking elements are both independent morphemes and fail to express concrete relations.
Standardized: IF a relational marker (case, adposition) is an independent morpheme, THEN it will not fail to express concrete relations.
IF a relational marker (case, adposition) fails to express concrete relations, THEN it will not be an independent morpheme.
Keywords: case, adposition, local relations
Domain: inflection, syntax
Type: implication
Status: achronic
Quality: absolute
Basis: Russian (Slavic, Indo-European), Evenki (Tungus), Japanese (Japanese-Ryukyuan), Tagalog (W. Malayo-Polynesian, Austronesian), Amharic (Semitic, Afro-Asiatic), Estonian, Karelian, Vepsian (all Finnic, Uralic)
Source: Kilby 1981: 116 (H)

FP