Pudding and Roly-poly pudding

Pudding noun - Any of various soft sweet desserts thickened usually with flour and baked or boiled or steamed.

Roly-poly pudding and pudding are semantically related. In some cases you can replace phrase "Roly-poly pudding" with "Pudding", this terms are similar.

Roly-poly pudding noun - Pudding made of suet pastry spread with jam or fruit and rolled up and baked or steamed.

Pudding and roly-poly pudding are semantically related. You can use "Pudding" instead a noun phrase "Roly-poly pudding".