(a)__"Purchase-money collateral" means goods or software that secures a purchase-money obligation incurred with respect to that collateral; and

(b)__"Purchase-money obligation" means an obligation of an obligor incurred as all or part of the price of the collateral or for value given to enable the debtor to acquire rights in or the use of the collateral if the value is in fact so used.

(2)__A security interest in goods is a purchase-money security interest:

(a)__To the extent that the goods are purchase-money collateral with respect to that security interest;

(b)__If the security interest is in inventory that is or was purchase-money collateral, also to the extent that the security interest secures a purchase-money obligation incurred with respect to other inventory in which the secured party holds or held a purchase-money security interest; and

(c)__Also to the extent that the security interest secures a purchase-money obligation incurred with respect to software in which the secured party holds or held a purchase-money security interest.

(3)__A security interest in software is a purchase-money security interest to the extent that the security interest also secures a purchase-money obligation incurred with respect to goods in which the secured party holds or held a purchase-money security interest if:

(a)__The debtor acquired its interest in the software in an integrated transaction in which it acquired an interest in the goods; and

(b)__The debtor acquired its interest in the software for the principal purpose of using the software in the goods.

(4)__The security interest of a consignor in goods that are the subject of a consignment is a purchase-money security interest in inventory.

(5)__In a transaction other than a consumer-goods transaction, if the extent to which a security interest is a