Given the task definition and input, reply with output. This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Like Finnish and Hungarian, Estonian is a somewhat agglutinative language, but unlike them, it has lost vowel harmony, the front vowels occurring exclusively on the first or stressed syllable, although in older texts the vowel harmony can still be recognized. Furthermore, the apocope of word-final sounds is extensive and has contributed to a shift from a purely agglutinative to a fusional language.[citation needed] The basic word order is subjectverbobject.
What kind of harmony has Estonian lost?