| Similarity | Rank | |
|---|---|---|
| biomass | 0.849 | 16091 |
| bioenergy | 0.810 | 65798 |
| biofuels | 0.790 | 26111 |
| biofuel | 0.786 | 33305 |
| feedstocks | 0.784 | 76964 |
| biogas | 0.779 | 44510 |
| Biomass | 0.760 | 50798 |
| gasification | 0.758 | 64900 |
| feedstock | 0.756 | 46681 |
| greenhouse | 0.738 | 8346 |
| composting | 0.736 | 23375 |
| organics | 0.732 | 49651 |
| renewable | 0.728 | 6153 |
| cellulosic | 0.728 | 66673 |
| compost | 0.721 | 12393 |
| digester | 0.714 | 85063 |
| methane | 0.708 | 19799 |
| peatlands | 0.702 | 94373 |
| Biofuels | 0.701 | 67613 |
| fertiliser | 0.701 | 43681 |
| biodiesel | 0.701 | 28801 |
| on-farm | 0.700 | 74855 |
| nitrogen | 0.696 | 12237 |
| composted | 0.696 | 59228 |
| cogeneration | 0.695 | 76666 |