It seems like you're categorizing parts of speech and their functions. Let me break it down for you according to your descriptions:
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Interjections: = Words or expressions used to express a strong feeling rather than a specific meaning. (e.g., "Wow!", "Oh no!", "Hooray!")
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Prepositions: * Express relationships between words or phrases. (e.g., "in", "on", "at", "between", "under")
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Conjunctions: :: Connect words, phrases, and clauses. (e.g., "and", "but", "or", "so", "although")
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Pronouns: Words that replace nouns in a sentence. (e.g., "he", "she", "it", "they", "this", "those")
If you need any more information or examples on these parts of speech, feel free to ask!