Is Informix Universal Server 9.12 really an Object-relational DBMS ?

HI, I am working on a document which compares the main O-R DBMS ? and I would like to have some information about Informix Universal Server release 9.12: 1) Does it support inheritance ? if so, simple inheritance ? multiple inheritance ? 2) Is it possible to create generic functions ? 3) Does it generate Object Identifier (OID) for each created object ? 4) Is there any functions which enable to use these OID ? ( for instance : REF, DEREF, ISDANGLING...) 5) Is it possible to define links between several object by using these OID ? (collection links...) 6) Does it support "inverse links" ? 6) Does it support polymorphism ? 7) Is it possible to create views which enable to use relational tables and transform them into "object views" with OID ? Well, I stop now for this moment, I hope really somebody can help me. I am sorry for my English and I am waiting for reading from you soon. Thanks in advance Didier PS: if you need more information, send me an Email.