Like most Siberian languages, Manchu is an agglutinative language that demonstrates limited vowel harmony. It has been demonstrated that it is derived mainly from the Jurchen language though there are many loan words from Mongolian and Chinese. Its script is vertically written and taken from the Mongolian script (which in turn derives from Aramaic via Uyghur and Sogdian). Although Manchu does not have the kind of grammatical gender found in European languages, some gendered words in Manchu are distinguished by different stem vowels (vowel inflection), as in "ama", "father" VS "eme", "mother".