| Phases         | Si      | Al      | Nd      | Ti |
| Parent glass   | 44 (48) | 27 (30) | 21 (22) | 8  |
| Residual glass | 55 (56) | 31 (32) | 12 (12) | 2  |
| Crystal phase  | 32 (36) | 28 (32) | 28 (32) | 12 |

Caption: Chemical compositions (at.%) of glass (T2) observed after crystallization

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": "44", "type": "Glass_Compound_Amount", "constituent": "Si", "unit": "mol", "material": "Parent glass"}
{"value": "27", "type": "Glass_Compound_Amount", "constituent": "Al", "unit": "mol", "material": "Parent glass"}
{"value": "21", "type": "Glass_Compound_Amount", "constituent": "Nd", "unit": "mol", "material": "Parent glass"}
{"value": "8", "type": "Glass_Compound_Amount", "constituent": "Ti", "unit": "mol", "material": "Parent glass"}
{"value": "55", "type": "Glass_Compound_Amount", "constituent": "Si", "unit": "mol", "material": "Residual glass"}
{"value": "31", "type": "Glass_Compound_Amount", "constituent": "Al", "unit": "mol", "material": "Residual glass"}
{"value": "12", "type": "Glass_Compound_Amount", "constituent": "Nd", "unit": "mol", "material": "Residual glass"}
{"value": "2", "type": "Glass_Compound_Amount", "constituent": "Ti", "unit": "mol", "material": "Residual glass"}
{"value": "32", "type": "Glass_Compound_Amount", "constituent": "Si", "unit": "mol", "material": "Crystal phase"}
{"value": "28", "type": "Glass_Compound_Amount", "constituent": "Al", "unit": "mol", "material": "Crystal phase"}
{"value": "28", "type": "Glass_Compound_Amount", "constituent": "Nd", "unit": "mol", "material": "Crystal phase"}
{"value": "12", "type": "Glass_Compound_Amount", "constituent": "Ti", "unit": "mol", "material": "Crystal phase"}