Question: in 1921 one of the greatest physicians of our time, albert einstein, won the nobel prize for his discoveru of the law behind the photovoltaic effect.*d1
Answer: --> In 1921 one of the greatest physicians of our time, Albert Einstein, won the Nobel Prize for his discoveru of the law behind the photovoltaic effect.*D1

Question: it is only necessary to eat during this period.
Answer: --> It is only necessary to eat during this period.

Question: he began to complain of the state of russia.
Answer:
--> He began to complain of the state of Russia.