input question: Fix spacing: Thesmallerandoftenunfinishedpiecesgivethecollectionadistinctprivatecharacter.

output answer: The smaller and often unfinished pieces give the collection a distinct private character.
Problem: ThetwogroovesinthesoleofDouble-cordfoot#59guidethestrandsofcordingperfectly,allowingthemtobesewnonprecisely.Theresultisanexceptionallyconsistentandattractivecordapplique.
What's a sentence that uses these characters?
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The two grooves in the sole of Double-cord foot # 59 guide the strands of cording perfectly, allowing them to be sewn on precisely. The result is an exceptionally consistent and attractive cord applique.
Add spaces: 11Hilkiahthesecond,Tebaliahthethird,Zechariahthefourth:Hosahhadthirteensonsandbrothers.

Answer: 11 Hilkiah the second, Tebaliah the third, Zechariah the fourth: Hosah had thirteen sons and brothers.
Balloonduel-thegame

Balloon duel - the game
[Q]: [KawasakiHydraulicPumpsleadtheworldinprovidinghighpressure,lownoiseandcompactsolutionstomeetthemostdemandingapplications.]
[A]: [Kawasaki Hydraulic Pumps lead the world in providing high pressure, low noise and compact solutions to meet the most demanding applications.]
Problem: Add spaces: Thegreatestplanet,Jupiter,nearesttotheSun,andthenoutwardswithdecreasingmagnitude,outermostNeptun.(Plutoispossiblyaplanetwhichhasgoneastrayandendedupintheouterpartsofthesolarsystem).

Spaces added:
The greatest planet, Jupiter, nearest to the Sun, and then outwards with decreasing magnitude, outermost Neptun. (Pluto is possibly a planet which has gone astray and ended up in the outer parts of the solar system).