but you can see with all their differences, some basic principles that are crucial to the proper functions of an airport, namely, launching, landing and loading of aircraft and supplies allow, can be accomplished safely and smoothly.

How would the previous sentence be correctly capitalized?
Answer: But you can see with all their differences, some basic principles that are crucial to the proper functions of an airport, namely, launching, landing and loading of aircraft and supplies allow, can be accomplished safely and smoothly.
the prague spring and the subsequent soviet invasion of czechoslovakia led to another soviet-mandated purge of questionable elements in the bulgarian communist party.

How would the previous sentence be correctly capitalized?
Answer: The Prague Spring and the subsequent Soviet invasion of Czechoslovakia led to another Soviet-mandated purge of questionable elements in the Bulgarian Communist Party.
the evening will bring clear weather. morning temperatures will be around 8 °c. during the day they will reach a maximum of 16 °c. low temperatures at night will be around 1°c. initially we have brisk southerly wind with strong gusts, in the late evening winds will be light.

How would the previous sentence be correctly capitalized?
Answer: The evening will bring clear weather. Morning temperatures will be around 8 °C. During the day they will reach a maximum of 16 °C. Low temperatures at night will be around 1°C. Initially we have brisk southerly wind with strong gusts, in the late evening winds will be light.
ps' represents the price received by the producers, which is the price paid by consumers plus the subsidy.

How would the previous sentence be correctly capitalized?
Answer: Ps' represents the price received by the producers, which is the price paid by consumers plus the subsidy.