Store-it-Here owns a warehouse. On September 1, it rented storage space to a lessee (tenant) for six months for a total cash payment of $12,000 received in advance. Prepare two sets of journal entries for Store-it-Here, with each set of journal entries recording the September 1 journal entry and the December 31 adjusting entry. Treat the receipt of cash as a liability in the first set of journal entries, and treat the receipt of cash as a revenue in the second set of journal entries.