伊什塔尔神，楔形文字拼法（写法）之一。可与图1复写，慢慢核对。

I doubt that "son of Inanna" in case of Shara exactly means "biological son". For example, in one lamentation for Dumuzi (first published by V.Scheil in 1911, the complete translation provided later by V. Afanasieva) states "Inanna cries for her murdered spouse, for her murdered son (dumu) Dumuzi". So, Afanasieva suggests that dumu in some contexts (Dumuzi, Shara in their relationship with Inanna) probably means "lover".
In one love spell even the common prostitute called child of Inanna (briefly mentioned in neareast.jhu.edu/bin/s/c/jc%20Prostitution.pdf, P.17).
dumu-dInanna as Shara s epithet probably means the deity of her coterie (like prostitute called the child of Inanna or pupil cailed dumu-edubba).
Generally, the usage of kinship terminology in Mesopotamian mythical texts seems obscure for me: maybe several traditions could mixed in one text, maybe the terms like "father" could used as terms of respect (see the Enki-Inanna discussion in G. Leick. Sex and Eroticism in Mesopotamian literature. 1994).
In Sex and Eroticism in Mesopotamian literature G. Leick also explains the meaning of "son of Ishtar" regarding to Nergal in Assyrian version of Nergal and Ereshkigal:
"The gods cheer him (Nergal) at his arrival as the ‘son of Ištar’, in view of his amorous exploits". Maybe the same epithet of Shara had the similar meaning.
Nevertheless in Ninurta and Anzu Shara called bukur (the firstborn) of Ishtar - it seems to mean a biological son. I inclined to recognize the different traditions about Shara -
1. Inanna s biological son. 2. Her lover and follower or disciple.
V. K. Afanasieva (in her Glossary to Russian translations of Sumerian literature texts and in Eagle and Serpent) marks that it is impossible to tell precisely, whether was Shara the son or lover of Inanna, and also that Shara was a dying and rising god. Latter circumstance seems very interesting.
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