I want to generate nodes for a content type using fields of some other content types. For example I have three content types A,B,C. All three content types have some common fields as well like Title, Category and Date. I want to create another content type D to hold only those common fields.
Now here I want to generate content automatically for content Type D. I'm looking for a technique in which I can define that, "fetch data" from these common fields of A,B C content types to fill fields of content type D and generate nodes automatically for content type D.
Any suggestions about how to get this to work?