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.

[Q]: A language isolate is a language that is not known to be related to any other language .
[A]: A language isolate , in the absolute sense , is a natural language with no demonstrable genealogical ( or " genetic " ) relationship with other languages , one that has not been demonstrated to descend from an ancestor common with any other language .


[Q]: Many grevilleas interbreed freely , and some specially picked hybrids have been grown for sale .
[A]: 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 .


[Q]: Stress management is the name for a number of techniques to control the level of psychical stress situations .
[A]:
Stress management is a wide spectrum of techniques and psychotherapies aimed at controlling a person 's level of stress , especially chronic stress , usually for the purpose of and for the motive of improving everyday functioning .