Access the FASB Accounting Standards Codification at the FASB website (www.fasb.org). Determine the specific eight-digit Codification citation (XXX-XX-XX-X) for each of the following: 

1. The balance sheet classification for a note payable due in six months that was used to purchase a building. 

2. The assets that may be excluded from current assets. 

3. Whether a note receivable from a related party would be included in the balance sheet with notes receivable or accounts receivable from customers. 

4. The items that are nonrecognized subsequent events that require a disclosure in the notes to the financial statements.