Ultimate tensile strength
https://openalex.org/C112950240
https://www.wikidata.org/wiki/Q76005
Composite material
https://openalex.org/C159985019
https://www.wikidata.org/wiki/Q181790
Materials science
https://openalex.org/C192562407
https://www.wikidata.org/wiki/Q228736
Carbon nanotube
https://openalex.org/C513720949
https://www.wikidata.org/wiki/Q1778729
Transmission electron microscopy
https://openalex.org/C146088050
https://www.wikidata.org/wiki/Q744818
Scanning electron microscope
https://openalex.org/C26771246
https://www.wikidata.org/wiki/Q321095
Ribbon
https://openalex.org/C2780392137
https://www.wikidata.org/wiki/Q17121801
Nanotube
https://openalex.org/C2777619693
https://www.wikidata.org/wiki/Q539430
Tensile testing
https://openalex.org/C182508753
https://www.wikidata.org/wiki/Q115605
Mechanical properties of carbon nanotubes
https://openalex.org/C146427324
https://www.wikidata.org/wiki/Q6804544
Modulus
https://openalex.org/C193867417
https://www.wikidata.org/wiki/Q6889814
Layer (electronics)
https://openalex.org/C2779227376
https://www.wikidata.org/wiki/Q6505497
Giving reasons why a particular method was rejected
A disadvantage of many cohort studies is that …
[INST] Please produce a sentence from the paper. The sentence should not mention the title of the paper, rather it be extracted from the Describing Methods section of the paper.
Please provide one singular full sentence from the paper that serves the function provided, using the example as guidance. Be specific, using relevant terminology from the paper.
Refrain from vague or generic statements. Finally produce a search query in the form of a question targeted towards the knowledge contained therein. 
You must output json with the structure of {'Sentence': sentence, 'Query': query}.
Field: "Composite material".
Paper: "A review on polymer nanofibers by electrospinning and their applications in nanocomposites"
Function: "Giving reasons why a particular method was rejected".
Example Sentence: "A disadvantage of many cohort studies is that …". [/INST]