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gptkb:The_Kauri-Gum_Industry_in_New_Zealand
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gum digging
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gptkb:The_Kauri-Gum_Industry_in_New_Zealand
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tree tapping
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gptkb:The_Kauri-Gum_Industry_in_New_Zealand
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swamp digging
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gptkb:Cold_Lake_oil_sands
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cyclic steam stimulation
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gptkb:Eagle-Ford
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horizontal drilling
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gptkb:Cold_Lake_oil_sands
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in situ
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gptkb:Athabasca_tar_sands
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in-situ recovery
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gptkb:Cold_Lake_Oil_Sands
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steam-assisted gravity drainage
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gptkb:Cold_Lake_Oil_Sands
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cyclic steam stimulation
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gptkb:Eagle-Ford
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hydraulic fracturing
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gptkb:Athabasca_tar_sands
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surface mining
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