Assertion: latin alphabet's letter | /r/HasProperty | modification
Facets:
Source sentences:
text: As the Slavic languages were richer in sounds than Greek, 43 letters were originally provided to represent them; the added letters were modifications or combinations of Greek letters or (in the case of the Cyrillic letters for ts, sh, and ch) were based on Hebrew.
text: Other letters are borrowed from different scripts (e.g., Greek) and are modified to conform to Roman style.
text: For this reason, most letters are either Latin or Greek, or modifications thereof.