Item:Q21639: Difference between revisions
Created claim: chemical formula (P218): C₄H₆O₄ |
Created claim: has part(s) (P8): oxygen (Q3307) |
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| Property / has part(s) | |||||||
| Property / has part(s): oxygen / rank | |||||||
Normal rank | |||||||
| Property / has part(s): oxygen / qualifier | |||||||
quantity: 4
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