Caffeine may improve (fat metabolism).Logical formLearned from6 sentences. Caffeine may cause an increase.Logical formLearned from6 sentences. A drop can be constituted-of-or-filled-with caffeine.Logical formLearned from6 sentences. A mixture can be constituted-of-or-filled-with caffeine.Logical formLearned from6 sentences. A result can be constituted-of-or-filled-with caffeine.Logical formLearned from6 sentences. A (caffeine rush) may pertain-to a person.Logical formLearned from6 sentences. A fan can be constituted-of-or-filled-with caffeine.Logical formLearned from6 sentences. Persons may drink caffeine.Logical formLearned from6 sentences. A problem can be with caffeine.Logical formLearned from6 sentences. Teas may contain caffeine.Logical formLearned from6 sentences. A (caffeine intake) may pertain-to persons.Logical formLearned from6 sentences. Problems may be connected to caffeine.Logical formLearned from6 sentences. A caffeine may pertain-to tea.Logical formLearned from6 sentences. Tea may contain caffeine.Logical formLearned from6 sentences. A person can be afraid of effects of caffeine.Logical formLearned from6 sentences.