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:
Choa Chu Kang MRT / LRT Station ( NS4 / BP1 ) is an MRT Station in Singapore .
answer:
Choa Chu Kang MRT / LRT station ( NS4 / JS1 / BP1 ) is an above-ground Mass Rapid Transit ( MRT ) and Light Rail Transit ( LRT ) interchange station in Choa Chu Kang , Singapore .


question:
Ca-Al-rich inclusions – the oldest known solid bits in meteorites formed within the solar system – are 4.567 billion years old .
answer:
Calcium – aluminium-rich inclusions — the oldest known solid constituents within meteorites that are formed within the Solar System — are 4.567 billion years old , giving a lower limit for the age of the Solar System .


question:
A rectifier is a device that can convert Alternating current ( AC ) to Direct current ( DC ) .
answer:

A rectifier is an electrical device that converts alternating current ( AC ) , which periodically reverses direction , to direct current ( DC ) , which flows in only one direction .


