question: all human beings on this planet are imperfect.
Capitalize this past sentence correctly.
A: All human beings on this planet are imperfect.

question: there were three guys out of the university of toronto, in their business school, who came up with what i think is the best framework for thinking about machine learning in general.
Capitalize this past sentence correctly.
A: There were three guys out of the University of Toronto, in their business school, who came up with what I think is the best framework for thinking about machine learning in general.

question: up the pyramid drew about 20 to boulders, which was smeared with mud and water on logs and weighed between 1 to 15 tonnes.
Capitalize this past sentence correctly.
A: Up the pyramid drew about 20 to boulders, which was smeared with mud and water on logs and weighed between 1 to 15 tonnes.