| Similarity | Rank | |
|---|---|---|
| income | 0.809 | 840 |
| serps | 0.809 | 19019 |
| earnings-related | 0.777 | 31116 |
| tax-free | 0.754 | 15467 |
| means-tested | 0.752 | 19606 |
| pensioner | 0.751 | 3864 |
| superannuation | 0.744 | 21247 |
| invalidity | 0.744 | 18820 |
| insurance | 0.735 | 1468 |
| non-contributory | 0.733 | 36581 |
| retirement | 0.727 | 2587 |
| old-age | 0.723 | 25465 |
| taxable | 0.716 | 11147 |
| entitlement | 0.715 | 6591 |
| flat-rate | 0.715 | 32187 |
| salary | 0.715 | 2915 |
| social-security | 0.712 | 44965 |
| deferred | 0.702 | 12012 |
| saving | 0.699 | 2612 |
| allowance | 0.694 | 2636 |
| taxation | 0.688 | 3193 |
| tax | 0.684 | 670 |
| income-related | 0.681 | 52533 |
| miras | 0.679 | 47204 |
| rebate | 0.679 | 10405 |