Task: Text Simplification
Input (English): Tasmanian oak refers to the hardwood produced by three trees : " Eucalyptus regnans " , " Eucalyptus obliqua " or " Eucalyptus delegatensis " , when it is sourced from the Australian state of Tasmania .
Output (English): The trees for making Tasmanian oak are " Eucalyptus regnans " , " Eucalyptus obliqua " or " Eucalyptus delegatensis " .