Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
While wandering the Redanian borderlands Geralt happened across some crafting diagrams written in a foreign tongue. He supposed the language was Ofieri, but, not being a linguist, he could not be certain. Wanting to resolve this mystery, he decided to look around for Ofieris, having made the indisputable deduction that where there are Ofieri documents, there must surely be Ofieris as well.
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