Table 2.

Topics of negative public sentiment.

No.	Topic	Feature word
1	International conflict	Energy, Europe, natural gas, nation, Russia, problems, petroleum, influence, government, sanction
2	Energy price volatility	price, market, coal, export, supply, commodity, oil price, supply and demand, crude oil, pressure
3	Negative political news	Germany, policy, law, draft, climate, energy industry, media report, Bundestag, fire coal, plan