| Similarity | Rank | |
|---|---|---|
| sulphur | 0.822 | 6647 |
| ferric | 0.822 | 42961 |
| nox | 0.822 | 28969 |
| hexafluoride | 0.821 | 78594 |
| trioxide | 0.816 | 83599 |
| oxidize | 0.813 | 38122 |
| &sub2; | 0.812 | 34174 |
| nitrogen | 0.810 | 6386 |
| phosgene | 0.809 | 98640 |
| vanadium | 0.809 | 61827 |
| polycyclic | 0.809 | 68633 |
| gaseous | 0.807 | 22356 |
| carbon | 0.802 | 3195 |
| ethane | 0.801 | 70857 |
| tetrachloride | 0.800 | 38419 |
| nitrous | 0.799 | 29606 |
| syn-gas | 0.797 | 49075 |
| methane | 0.794 | 11786 |
| dioxide | 0.793 | 4762 |
| polychlorinate | 0.793 | 45744 |
| oxide | 0.789 | 7892 |
| beryllium | 0.788 | 52345 |
| nitric | 0.788 | 22052 |
| unburned | 0.787 | 89697 |
| hydrocarbon | 0.787 | 12320 |