**Example Input:**
The target word is "bank".
```python
sentences = [
    "I need to go to the bank to deposit my paycheck.",
    "We sat on the bank of the river and enjoyed the view.",
    "You can always bank on her support.",
    "I'm banking on you to finish the project on time.",
    "A bank of clouds was gathering in the sky.",
    "The plane trees formed a bank along the avenue.",
    "The road was on a steep bank.",
    "I banked the money in my savings account.",
    "The pilot banked the plane to the left.",
    "A data bank."
]
```

**Example Output:**
```json
{
  "Meanings Count": 7,
  "Details": {
    "1. Financial Institution": [
      "I need to go to the bank to deposit my paycheck.",
      "I banked the money in my savings account."
    ],
    "2. River Edge": [
      "We sat on the bank of the river and enjoyed the view."
    ],
    "3. Rely or Count On": [
      "You can always bank on her support.",
      "I'm banking on you to finish the project on time."
    ],
    "4. Collection or Mass": [
      "A bank of clouds was gathering in the sky.",
      "The plane trees formed a bank along the avenue."
    ],
    "5. Slope or Hill": [
      "The road was on a steep bank."
    ],
    "6. Tilting an Airplane": [
      "The pilot banked the plane to the left."
    ],
    "7. Storage or Repository": [
      "A data bank."
    ]
  }
}
```

**Task:** Categorize Sentences Based on the Meaning of the Target Word

You will be given a list of sentences. Your task is to categorize each sentence based on the different meanings of the target word. The output should be a JSON dictionary where the keys are the types of meanings, which are unique, and the values are lists of sentences that correspond to each meaning.

**Instructions:**
1. Read each sentence carefully.
2. Determine the meaning of the target word in the sentence.
3. Categorize the sentence under the appropriate meaning.
4. Ensure the meanings are unique and label them clearly with Arabic numbers.
5. The "Meanings Count" should reflect the number of unique meanings found in the "Details" section.
6. The output JSON should follow the same format as the example output provided.

**Real Input:**
1. Target Word: [Insert Target Word Here]
2. Sentences: [Insert List of Sentences Here]