SimilarityRank
biodiesel 0.799 34972
renewable_fuel 0.797 88540
biofuel 0.767 11346
hybrid_vehicle 0.737 71174
electric_vehicle 0.725 16350
alternative_energy_source 0.724 77620
alternative_energy 0.704 32265
liquid_fuel 0.681 86707
fuel_cell 0.681 19021
CNG 0.681 58832
natural_gas 0.675 5419
renewable_energy_source 0.673 24016
renewable_energy 0.666 4106
hybrid_car 0.663 85459
fuel_efficiency 0.658 45499
internal_combustion_engine 0.651 72067
electric_car 0.648 17957
bioga 0.648 33090
renewable_energy_technology 0.646 55947
diesel 0.643 12206
fossil_fuel 0.640 9239
diesel_fuel 0.635 48281
of_fossil_fuel 0.635 44531
hydrogen 0.634 10438
renewable_source 0.632 75160