| 1 | That painting must be worth a king's ransom. | |
| 2 | The second piece is emerald ring, it's very valuable. | |
| 3 | This can be valuable for many reasons. | |
| 4 | As a simple system for content management, blogs are invaluable. | |
| 5 | Cyber espionage is a concerted effort to steal all types of high-value technologies. |
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