Question: Over the course of two decades around 500000 prisoners worked there in intensely cold weather suffering starvation while forced to work on the construction of the mines the factories and the city itself
Please fix the punctuation.
Fixed: [Over the course of two decades, around 500,000 prisoners worked there in intensely cold weather, suffering starvation while forced to work on the construction of the mines, the factories, and the city itself.]

Question: BELGIUMAgreements United Nations United Nations Conference on Trade and Development World Bank WB
Please fix the punctuation.
Fixed: [BELGIUMAgreements: United Nations, United Nations Conference on Trade and Development, World Bank WB.]

Question: Overall student rating 43 50 17 reviews
Please fix the punctuation.
Fixed: [Overall student rating: 4.3 /5.0 (17 reviews)]

Question: If as a spectator one stubbornly holds on to this long minimalistic monotony one is forced along into a trance while thunder approaches and the rain at last pours down over the earth and a Russian Easter mass lifts one toward heaven
Please fix the punctuation.
Fixed:
If, as a spectator, one stubbornly holds on to this long minimalistic monotony, one is forced along into a trance while thunder approaches, and the rain, at last, pours down over the earth, and a Russian Easter mass lifts one toward heaven.