| Sample        | O 2  | O 4  | O 6  | Rms (%) | O 4/O 6 |
| Glass         | 4.88 | 0.95 | 0.37 | 1.6%    | 2.57    |
| Glass ceramic | 3.81 | 0.57 | 0.18 | 2.9%    | 3.17    |

Caption: Judd-Ofelt parameters, O t (in unit of 10-20 cm2), of Er3+ in the precursor glass and glass ceramic (rms: the root-mean-square errors)

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": "4.88", "type": "Other"}
{"value": "0.95", "type": "Other"}
{"value": "0.37", "type": "Other"}
{"value": "2.57", "type": "Other"}
{"value": "3.81", "type": "Other"}
{"value": "0.57", "type": "Other"}
{"value": "0.18", "type": "Other"}
{"value": "3.17", "type": "Other"}