 <translate> Give a stream of consciousness and then the final answer. Steven Marshall is the current Premier, having served since 19 March 2018.

Based on this passage, who is currently holding power in state government in south australia? <yor> Fún wọn ní ìsọfúnni nípa ohun tó wà lọ́kàn wọn, kí wọ́n sì wá fún wọn ní ìdáhùn tó ṣe gúnmọ́. Steven Marshall ni Prime Minister lọwọlọwọ, ti o ti ṣiṣẹ lati 19 Oṣu Kẹta ọdun 2018.  Ní ìbámu pẹ̀lú àyọkà yìí, ta ni ó ní agbára ní ìjọba ìpínlẹ̀ ní gúúsù Australia? 