| Similarity | Rank | |
|---|---|---|
| biomass | 0.757 | 8352 |
| biofuel | 0.738 | 11346 |
| renewable_fuel | 0.703 | 88540 |
| liquid_fuel | 0.702 | 86707 |
| biodiesel | 0.696 | 34972 |
| bioga | 0.692 | 33090 |
| lignin | 0.688 | 75500 |
| raw_material | 0.687 | 8197 |
| bioenergy | 0.667 | 43864 |
| anaerobic_digestion | 0.652 | 68210 |
| by-product | 0.646 | 53749 |
| biochar | 0.646 | 50196 |
| organic_waste | 0.644 | 69060 |
| digester | 0.641 | 79636 |
| cellulose | 0.641 | 36202 |
| renewable_resource | 0.638 | 46913 |
| wood_chip | 0.633 | 65929 |
| ethanol | 0.631 | 13692 |
| methanol | 0.630 | 39114 |
| jet_fuel | 0.628 | 83249 |
| combustion_of | 0.622 | 77006 |
| diesel_fuel | 0.621 | 48281 |
| energy_source | 0.615 | 21126 |
| fuel_oil | 0.615 | 80779 |
| byproduct | 0.614 | 80021 |