Task: Question Generation
Input (English): In coniferous or softwood species the wood cells are mostly of one kind, tracheids, and as a result the material is much more uniform in structure than that of most hardwoods. There are no vessels ("pores") in coniferous wood such as one sees so prominently in oak and ash, for example.
Output (English): Besides oak, what's an example of a hardwood with prominent pores?