instruction:
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
question:
A doorstop ( or door stop or doorstopper ) is a tool .
answer:
A doorstop ( also door stopper , door stop or door wedge ) is an object or device used to hold a door open or closed , or to prevent a door from opening too widely .


question:
The Sierra newt is a subspecies of the California newt .
answer:
The Sierra newt was formerly regarded as a subspecies ( " Taricha torosa sierrae " ) of the California newt ( " Taricha torosa " ) .


question:
When Nakamura won the 2014 New Japan Cup , Tanahashi had a second rematch against Nakamura at Invasion Attack 2014 on April 6 .
answer:

After Nakamura had won the 2014 New Japan Cup , another title match was booked between him and Tanahashi for the April 6 Invasion Attack 2014 event , where Tanahashi was defeated in his second title defense .