Models 6B

The steam from that geyser must be hot

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You have to be careful near a geyser. They're dangerous

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May I take a picture of the geyser?

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I think that could be igneous rock. I'm not sure, though

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Could you explain how geysers work?

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Can you tell how old these rocks are by looking at them

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Would you call me tomorrow please?

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I have to submit your project in two weeks

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He was able to touch the fire by his own hands

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The crust must be the layer we are standing on

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