SELECT lot_details FROM Lots EXCEPT SELECT T1.lot_details FROM Lots AS T1 JOIN transactions_lots AS T2 ON T1.lot_id  =  T2.lot_id
SELECT lot_details FROM Lots EXCEPT SELECT T1.lot_details FROM Lots AS T1 JOIN transactions_lots AS T2 ON T1.lot_id  =  T2.lot_id <table_name> : Lots col : lot_id | investor_id | lot_details row 1 : 1 | 13 | r row 2 : 2 | 16 | z row 3 : 3 | 10 | s row 4 : 4 | 19 | s row 5 : 5 | 6 | q row 6 : 6 | 20 | d row 7 : 7 | 7 | m row 8 : 8 | 7 | h row 9 : 9 | 20 | z row 10 : 10 | 9 | x row 11 : 11 | 1 | d row 12 : 12 | 19 | m row 13 : 13 | 7 | z row 14 : 14 | 6 | d row 15 : 15 | 1 | h <table_name> : Transactions_Lots col : transaction_id | lot_id row 1 : 3 | 11 row 2 : 3 | 8 row 3 : 2 | 11 row 4 : 3 | 14 row 5 : 12 | 10 row 6 : 15 | 10 row 7 : 10 | 10 row 8 : 1 | 1 row 9 : 1 | 14 row 10 : 3 | 4 row 11 : 14 | 9 row 12 : 7 | 1 row 13 : 12 | 15 row 14 : 6 | 3 row 15 : 2 | 1
col : lot_details row 1 : m row 2 : q