Question: The old languages spoken, written or signed by Mohammad Hejazi are part of what languages?

full_context: Document 1: Western Iranian languages: The Western Iranian languages are a branch of the Iranian languages, attested from the time of Old Persian (6th century BC) and Median.
Document 2: Mohammad-Hossein Khoshvaght: Mohammad-Hossein Khoshvaght was head of the press and foreign journalists department at Iran's Ministry of Culture and Islamic Guidance, under reformist President Mohammad Khatami.
Document 3: Iranian languages: What is known in Iranian linguistic history as the "Middle Iranian" era is thought to begin around the 4th century BCE lasting through the 9th century. Linguistically the Middle Iranian languages are conventionally classified into two main groups, Western and Eastern.
Document 4: Iranian languages: Two of the earliest dialectal divisions among Iranian indeed happen to not follow the later division into Western and Eastern blocks. These concern the fate of the Proto-Indo-Iranian first-series palatal consonants, *ć and *dź:
Document 5: Iranian languages: In addition to Old Persian and Avestan, which are the only directly attested Old Iranian languages, all Middle Iranian languages must have had a predecessor "Old Iranian" form of that language, and thus can all be said to have had an (at least hypothetical) "Old" form. Such hypothetical Old Iranian languages include Carduchi (the hypothetical predecessor to Kurdish) and Old Parthian. Additionally, the existence of unattested languages can sometimes be inferred from the impact they had on neighbouring languages. Such transfer is known to have occurred for Old Persian, which has (what is called) a "Median" substrate in some of its vocabulary. Also, foreign references to languages can also provide a hint to the existence of otherwise unattested languages, for example through toponyms/ethnonyms or in the recording of vocabulary, as Herodotus did for what he called "Scythian".
Document 6: Azam Taleghani: Azam Taleghani () is an Iranian politician and journalist, born in 1944, is the head of the Society of Islamic Revolution Women of Iran, editor of "Payam Hajar" Weekly, and a former member of the Iranian parliament.
Document 7: Iranian languages: The multitude of Middle Iranian languages and peoples indicate that great linguistic diversity must have existed among the ancient speakers of Iranian languages. Of that variety of languages/dialects, direct evidence of only two have survived. These are:
Document 8: Iranian languages: It is possible that other distinct dialect groups were already in existence during this period. Good candidates are the hypothethical ancestor languages of Alanian/Scytho-Sarmatian subgroup of Scythian in the far northwest; and the hypothetical "Old Parthian" (the Old Iranian ancestor of Parthian) in the near northwest, where original *dw > *b (paralleling the development of *ćw).
Document 9: Iranian languages: Old Persian is the Old Iranian dialect as it was spoken in south-western Iran by the inhabitants of Parsa, who also gave their name to their region and language. Genuine Old Persian is best attested in one of the three languages of the Behistun inscription, composed circa 520 BC, and which is the last inscription (and only inscription of significant length) in which Old Persian is still grammatically correct. Later inscriptions are comparatively brief, and typically simply copies of words and phrases from earlier ones, often with grammatical errors, which suggests that by the 4th century BC the transition from Old Persian to Middle Persian was already far advanced, but efforts were still being made to retain an "old" quality for official proclamations.
Document 10: Iranian languages: The other directly attested Old Iranian dialects are the two forms of Avestan, which take their name from their use in the Avesta, the liturgical texts of indigenous Iranian religion that now goes by the name of Zoroastrianism but in the Avesta itself is simply known as vohu daena (later: behdin). The language of the Avesta is subdivided into two dialects, conventionally known as "Old (or 'Gathic') Avestan", and "Younger Avestan". These terms, which date to the 19th century, are slightly misleading since 'Younger Avestan' is not only much younger than 'Old Avestan', but also from a different geographic region. The Old Avestan dialect is very archaic, and at roughly the same stage of development as Rigvedic Sanskrit. On the other hand, Younger Avestan is at about the same linguistic stage as Old Persian, but by virtue of its use as a sacred language retained its "old" characteristics long after the Old Iranian languages had yielded to their Middle Iranian stage. Unlike Old Persian, which has Middle Persian as its known successor, Avestan has no clearly identifiable Middle Iranian stage (the effect of Middle Iranian is indistinguishable from effects due to other causes).
Document 11: Mohsen Mehralizadeh: He was a Vice President of Iran and the head of the National Sports Organization of Iran under President Khatami. He is an ethnic Azerbaijani.
Document 12: Hossein Fatemi: Hossein Fatemi (10 February 1917 – 10 November 1954) was a scholar, journalist, and famous politician of Iran. A close associate of Prime Minister Mohammad Mosaddegh, he proposed nationalization of Iranian oil and gas assets. Initially a journalist, he served as Foreign Affairs Minister of Iran from 1951 to 1953. After the 1953 CIA-orchestrated coup d'état toppled the democratically elected government of Mosaddegh, Fatemi was arrested, tortured, and convicted by a military court of "treason against the Shah", and executed by a firing squad.
Document 13: Mohammad-Amin Riahi: Mohammad-Amin Riahi (; 1 June 1923, Khoy – 15 May 2009, Tehran) was a prominent Iranian literary scholar of Persian literature, a historian, writer and statesman. Apart from being one of the authors of Dehkhoda Dictionary and Encyclopædia Iranica, he was the author and editor of several well-known scholarly books. Mohammad-Amin Riahi received his PHD on Persian literature from Tehran University
Document 14: Mohammad Hejazi (author): Mohammad Hejazi (محمد حجازی; in Persian) (April 14, 1900–January 30, 1974) was an Iranian novelist, short-story writer, playwright, essayist, translator, a government official and member of the senate.
Document 15: Hafez: Hafez was born in Shiraz, Iran. His parents were from Kazerun, Fars Province. Despite his profound effect on Persian life and culture and his enduring popularity and influence, few details of his life are known. Accounts of his early life rely upon traditional anecdotes. Early tazkiras (biographical sketches) mentioning Hafez are generally considered unreliable. At an early age, he memorized the Quran and was given the title of Hafez, which he later used as his pen name. The preface of his Divān, in which his early life is discussed, was written by an unknown contemporary whose name may have been Moḥammad Golandām. Two of the most highly regarded modern editions of Hafez's Divān are compiled by Moḥammad Ghazvini and Qāsem Ḡani (495 ghazals) and by Parviz Natel-Khanlari (486 ghazals).Modern scholars generally agree that Hafez was born either in 1315 or 1317.  According to an account by Jami, Hafez died in 1390. Hafez was supported by patronage from several successive local regimes: Shah Abu Ishaq, who came to power while Hafez was in his teens; Timur at the end of his life; and even the strict ruler Shah Mubariz ud-Din Muhammad (Mubariz Muzaffar). Though his work flourished most under the 27-year rule of Jalal ud-Din Shah Shuja (Shah Shuja), it is claimed Hāfez briefly fell out of favor with Shah Shuja for mocking inferior poets (Shah Shuja wrote poetry himself and may have taken the comments personally), forcing Hāfez to flee from Shiraz to Isfahan and Yazd, but no historical evidence is available. He is said to have been in Timur's court, as Hafez wrote a ghazal whose verse says if this Turk accept his homage:
ground_truth: Iranian languages
sub_queries: Mohammad Hejazi >> languages spoken, written or signed Answer: Persian
Old Persian >> part of Answer: Iranian languages