However,ifnecessaryyoumaysitonachair.

However, if necessary you may sit on a chair.
[Q]: [D20061947Downlightluminaires,forSurfacemounting,diameter292mm,IP20,lightsourceCompactfluorescentTC-DE,2x18W,ballasttypeHF,withlightsourcetypeCRI>80,4000K,optictypeSI-Silverreflektor.]
[A]: [D20061947 Downlight luminaires, for Surface mounting, diameter 292mm, IP20, light source Compact fluorescent TC-DE, 2x18W, ballast type HF, with light source type CRI>80, 4000K, optic type SI - Silver reflektor.]
Problem: Add spaces: Thesleevesareworkedfromarmholesanddown.

Spaces added: The sleeves are worked from armholes and down.
This text is missing some spaces, please add them: IndividualswithsurnameTHORUP
Individuals with surname THORUP
input question: Fix spacing: IndividualswithsurnameSECKEL

output answer: Individuals with surname SECKEL
input question: Fix spacing: AllarepersonalizedwithpaintingsbythefamouspainterPaolaRomanowhocreatedthemexclusivelyforthehotel.

output answer:
All are personalized with paintings by the famous painter Paola Romano who created them exclusively for the hotel.