| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | lignite | Germany | Lignite is a significant source of energy and a major part of the energy production in these regions. | 1 |
| 2 | lignite | Germany | Lignite is an important source of energy and a significant contributor to the country's electricity production. | 1 |
| 3 | lignite | Germany | Lignite is a significant source of energy and widely used for electricity production in Germany. | 1 |
| 4 | lignite | Germany | Lignite is an important source of energy and a significant part of Germany's electricity production. | 1 |
| 5 | lignite | Germany | Lignite is a significant source of energy and plays a key role in the energy mix. | 1 |