Assertion: diphthong's vowel | /r/HasProperty | e
Facets:
Source sentences:
text: The diphthong is formed by the vowels I+E, but the emphasis is on the open vowel (e).
text: The final Spanish vowel left to master is the e.
text: Both classical and present practice is to write the letters separately, but the ligature was used in medieval and early modern writings, in part because æ was reduced to the simple vowel [e] during the Roman Empire.