A continent may pertain-to an unknown.Logical formLearned from2 sentences. Education can be at a heart of a continent of an unknown.Logical formLearned from2 sentences. A use of unknowns may create uncertainty.Logical formLearned from2 sentences. Interest can be in an unknown.Logical formLearned from2 sentences. An unknown may be resolved.Logical formLearned from2 sentences. A line can be into an unknown.Logical formLearned from2 sentences. An unknown may undergo a use.Logical formLearned from2 sentences. A battle can be against an unknown.Logical formLearned from2 sentences. An invasion of an unknown can be of a nature of an adventure.Logical formLearned from2 sentences. Constellations can be through unknowns.Logical formLearned from2 sentences. An unknown can be to himself.Logical formLearned from2 sentences. Dimension may remain an unknown to himself.Logical formLearned from2 sentences. Unknown to himself may be stuck in the ground.Logical formLearned from2 sentences. (Marriage unknown) can be to husband.Logical formLearned from2 sentences. Unknown to accuseds may await witnesses.Logical formLearned from2 sentences.