Concentration can be in fluids.Logical formLearned from2 sentences. (Body fluids) may carry a virus.Logical formLearned from2 sentences. (Body fluids) may include semen.Logical formLearned from2 sentences. Bottles can be constituted-of-or-filled-with fluids.Logical formLearned from2 sentences. A fluid can be within an uterus.Logical formLearned from2 sentences. Direct exchange can be constituted-of-or-filled-with (body fluids).Logical formLearned from2 sentences. A (working fluid) can be inert.Logical formLearned from2 sentences. Systems can be with a (working fluid).Logical formLearned from2 sentences. A fluid can be in a cycle.Logical formLearned from2 sentences. Fluid may contain kerosene.Logical formLearned from2 sentences. Droplets can be constituted-of-or-filled-with fluids.Logical formLearned from2 sentences. A child may keep some fluid.Logical formLearned from2 sentences. A bottles may pertain-to a fluid.Logical formLearned from2 sentences. (Rehydration fluids) may have a (shelf life).Logical formLearned from2 sentences. A fluid may be knowned as oral (rehydration therapy).Logical formLearned from2 sentences.