input question: Fix spacing: SomeoftheRoyalHouses'finestporcelainitemsaredisplayedhere.

output answer: Some of the Royal Houses' finest porcelain items are displayed here.

input question: Fix spacing: 4:6YahwehsaidtoCain,"Whyareyouangry?Whyhastheexpressionofyourfacefallen?

output answer: 4:6 Yahweh said to Cain, "Why are you angry? Why has the expression of your face fallen?

input question: Fix spacing: Averageretailprice:1730.00O

output answer: Average retail price: 1730.00 O

input question: Fix spacing: AttheendofApril2016,Hans-HeinrichSchmidtretiredafter10yearsasTechnicalDirectorandover42yearsworkingatWeidemann.

output answer:
At the end of April 2016, Hans-Heinrich Schmidt retired after 10 years as Technical Director and over 42 years working at Weidemann.