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'''A:''' There are 8 different forms.
*'''Full diacritics''': this is the form of the word with the maximum number of diacritics. The only difference betwen this one and Medium diacritics is that this one may also have [http://en.wikipedia.org/wiki/Macron macron] and [http://en.wikipedia.org/wiki/Vrachy vrachy] marks. A known issue here in the original Perseus data, is that macron and vrachy are often not combined with the accent mark (when the specific letter should also have an accent).
*'''Medium diacritics''': This is the standard used in Ancient Greek polytonic writing with full accents and breathings, excluding macron and vrachy.*'''Low diacritics''': In this format only the acute accent is used and it is the way a word would be written in monotonic Greek (Modern Greek).
*'''Capitals''': Capitalized Greek letters without any diacritics whatsoever. This is the form used in Ancient Greek times and it is also almost identical to Modern Greek capitalization rules.
*'''Transliteration A''': This is a detailed form of transliteration, taking into account accents and breathings. Transliteration A was based on Medium diacritics.