Assertion: vowel | /r/HasProperty | predictable
Facets:
value: originally
type: OTHER
value: phonologically
type: DEGREE
Source sentences:
text: Umlaut, meanwhile, is a process that is particular to the Germanic languages and refers to a variation between back vowels and front vowels that was originally phonologically predictable, and was caused by the presence of an /i/ or /j/ in the syllable following the modified vowel.