| Glass type | P2O5 | Al2O3 | SiO2 | MgO |
| MVP1       | 60   | 15    | 15   | 10  |
| MVP2       | 60   | 10    | 15   | 15  |
| MVP3       | 60   | 10    | 10   | 20  |
| MVP5       | 60   | 10    | 5    | 25  |
| MVP6       | 40   | 5     | 5    | 30  |
| MVP8a      | 45   | 5     | 5    | 45  |
| MVP8b      | 43   | 4     | 10   | 43  |
| MVP8c      | 42   | 4     | 12   | 42  |
| MVP9a      | 41   | 3     | 15   | 41  |
| MVP9b      | 42   | 10    | 4    | 44  |
| MVP9c      | 42   | 12    | 4    | 42  |
| MVP9d      | 41   | 15    | 3    | 41  |

Caption: Nominal glass composition (wt %).

You are provided with a table from a material science paper. Here are JSON templates for two types of numeric cells: "Other" and "Glass_Compound_Amount":
{"value": "xx", "type": "Other"}
{"value": "xx", "type": "Glass_Compound_Amount", "constituent": "xx", "unit": "xx", "material": "xx"}

Please describe all numeric cells in the above table following the JSON templates (proceeding by row in a left-right, top-down direction). For each cell, output one JSON description per line. For any unanswerable attributes in the templates, set their value to the placeholder "xx".

Cell Description:
{"value": "60", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP1"}
{"value": "15", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP1"}
{"value": "15", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP1"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP1"}
{"value": "60", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP2"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP2"}
{"value": "15", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP2"}
{"value": "15", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP2"}
{"value": "60", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP3"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP3"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP3"}
{"value": "20", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP3"}
{"value": "60", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP5"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP5"}
{"value": "5", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP5"}
{"value": "25", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP5"}
{"value": "40", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP6"}
{"value": "5", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP6"}
{"value": "5", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP6"}
{"value": "30", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP6"}
{"value": "45", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP8a"}
{"value": "5", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP8a"}
{"value": "5", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP8a"}
{"value": "45", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP8a"}
{"value": "43", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP8b"}
{"value": "4", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP8b"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP8b"}
{"value": "43", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP8b"}
{"value": "42", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP8c"}
{"value": "4", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP8c"}
{"value": "12", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP8c"}
{"value": "42", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP8c"}
{"value": "41", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP9a"}
{"value": "3", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP9a"}
{"value": "15", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP9a"}
{"value": "41", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP9a"}
{"value": "42", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP9b"}
{"value": "10", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP9b"}
{"value": "4", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP9b"}
{"value": "44", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP9b"}
{"value": "42", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP9c"}
{"value": "12", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP9c"}
{"value": "4", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP9c"}
{"value": "42", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP9c"}
{"value": "41", "type": "Glass_Compound_Amount", "constituent": "P2O5", "unit": "wt", "material": "MVP9d"}
{"value": "15", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "MVP9d"}
{"value": "3", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "MVP9d"}
{"value": "41", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "MVP9d"}