cultural assays to identify any potential microbiological or parasitic organisms

How would the previous sentence be correctly capitalized?
Answer: Cultural assays to identify any potential microbiological or parasitic organisms
at the same time we visit each other’s schools to observe and learn from the teaching.

How would the previous sentence be correctly capitalized?
Answer: At the same time we visit each other’s schools to observe and learn from the teaching.
1 month ago 32:08 xhamster public, old man, old and young (18+)

How would the previous sentence be correctly capitalized?
Answer: 1 month ago 32:08 xHamster public, old man, old and young (18+)
it was close to malleable iron which could be used for the manufacture of knives, plows, valves, nails, wheel fittings, horse shoes and spades.

How would the previous sentence be correctly capitalized?
Answer: It was close to malleable iron which could be used for the manufacture of knives, plows, valves, nails, wheel fittings, horse shoes and spades.