Section 9--325. Priority of Security Interests in Transferred Collateral. (a) Subordination of security interest in transferred collateral. Except as otherwise provided in subsection (b), a security interest created by a debtor is subordinate to a security interest in the same collateral created by another person if: (1) the debtor acquired the collateral subject to the security interest created by the other person; (2) the security interest created by the other person was perfected when the debtor acquired the collateral; and (3) there is no period thereafter when the security interest is unperfected. (b) Limitation of subsection (a) subordination. Subsection (a) subordinates a security interest only if the security interest: (1) otherwise would have priority solely under Section 9--322(a) or 9--324; or (2) arose solely under Section 2--711(3) or 2-A-508(5).