| Sample   | Nitrogen content (ppm) | Bulk density (g/cm3) | Young's modulus (GPa) |
| N-doped  | 2300                   | 2.217                | 73.80                 |
| N-doped  | 4500                   | 2.229                | 74.75                 |
| N-doped  | 6800                   | 2.237                | 75.80                 |
| VAD      | 0                      | 2.206                | 72.33                 |
| Type I   | 0                      | 2.210                | 72.55                 |
| Type II  | 0                      | 2.208                | 72.48                 |
| Type III | 0                      | 2.201                | 71.42                 |

Caption: Density and Young's modulus of the nitrogen-incorporated silica glass and the representative pure silica glass

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": "2300", "type": "Other"}
{"value": "2.217", "type": "Other"}
{"value": "73.80", "type": "Other"}
{"value": "4500", "type": "Other"}
{"value": "2.229", "type": "Other"}
{"value": "74.75", "type": "Other"}
{"value": "6800", "type": "Other"}
{"value": "2.237", "type": "Other"}
{"value": "75.80", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "2.206", "type": "Other"}
{"value": "72.33", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "2.210", "type": "Other"}
{"value": "72.55", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "2.208", "type": "Other"}
{"value": "72.48", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "2.201", "type": "Other"}
{"value": "71.42", "type": "Other"}