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.
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Question: Many grevilleas interbreed freely , and some specially picked hybrids have been grown for sale .

Answer: Many grevilleas have a propensity to interbreed freely , and extensive hybridisation and selection of horticulturally desirable attributes has led to the commercial release of many named cultivars .

Question: The 2012 Arab Nations Cup ( Arabic : ) was the 10th Arab Nations Cup tournament .

Answer: The 2012 Arab Cup was the tenth edition of the Arab Nations Cup , also referred to as the Arab Cup for national football teams affiliated with the Union of Arab Football Associations ( UAFA ) .

Question: A nation is a group of people who share the same culture , history , language or ethnicity .

Answer:
A nation is a stable community of people , formed on the basis of a common language , territory , history , ethnicity , or psychological make-up manifested in a common culture .