-
friendly:thing,
-
exotic:form,
-
natural:energy,
-
free:energy,
-
renewable:energy,
-
sufficient:energy,
-
renewable:electricity,
-
innovative:measure,
-
cleaner:energy,
-
clean:thing,
-
clean:electricity,
-
clean:energy,
-
cheap:energy,
-
friendly:measure,
-
natural:power,
-
sufficient:power,
-
alternative:power,
-
electric:sector,
-
basic:system,
-
large:structure,
-
renewable:system,
-
external:power,
Category Nuances for solar_power:
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natural,
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cheap,
-
free,
-
renewable,
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friendly,
-
external,
-
exotic,
-
basic,
-
cleaner,
-
large,
-
clean,
-
sufficient,
-
alternative,
-
electric,
-
innovative,
Simple Categories for solar_power: