| become discolored | 0.44 |
| provide real sense of h… | 0.42 |
| depict bohr | 0.32 |
| spiral corner | 0.30 |
| become delicate | 0.30 |
| curl corner | 0.28 |
| depict the hydrogen atom | 0.25 |
| depict the formula | 0.25 |
| commemorate christmas | 0.25 |
| commemorate 61st birth … | 0.25 |
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| information | 0.25 |
| the face value of ron | 0.25 |
| dedicated to the theme | 0.68 |
| put into circulation | 0.57 |
| purchased | 0.50 |
| issued by britain | 0.43 |
| issued in 1840 | 0.39 |
| collected | 0.39 |
| displayed on an item of… | 0.37 |
| introduced in great bri… | 0.35 |
| issued by any nation | 0.32 |
| issued by province | 0.32 |
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