| Comp | SiO2      | CaO       | Al2O3     | B2O3    | MgO     | Na2O      | Fe2O3     | F2        |
| Wt.% | 54.0-56.0 | 16.5-18.5 | 13.5-15.5 | 5.5-7.5 | 3.5-5.5 | 0.50-0.90 | 0.20-0.55 | 0.15-0.50 |

Caption: Compositional range of Owens-Corning E-glass used in this study given in weight percent. The glass transition temperature of this glass is approximately 670degC.

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": "54.0", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "xx"}
{"value": "56.0", "type": "Other"}
{"value": "16.5", "type": "Glass_Compound_Amount", "constituent": "CaO", "unit": "wt", "material": "xx"}
{"value": "18.5", "type": "Other"}
{"value": "13.5", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "xx"}
{"value": "15.5", "type": "Other"}
{"value": "5.5", "type": "Glass_Compound_Amount", "constituent": "B2O3", "unit": "wt", "material": "xx"}
{"value": "7.5", "type": "Other"}
{"value": "3.5", "type": "Glass_Compound_Amount", "constituent": "MgO", "unit": "wt", "material": "xx"}
{"value": "5.5", "type": "Other"}
{"value": "0.50", "type": "Glass_Compound_Amount", "constituent": "Na2O", "unit": "wt", "material": "xx"}
{"value": "0.90", "type": "Other"}
{"value": "0.20", "type": "Glass_Compound_Amount", "constituent": "Fe2O3", "unit": "wt", "material": "xx"}
{"value": "0.55", "type": "Other"}
{"value": "0.15", "type": "Glass_Compound_Amount", "constituent": "F", "unit": "wt", "material": "xx"}
{"value": "0.50", "type": "Other"}