Sentence examples for a third reason is from inspiring English sources

A third reason is education.

And a third reason is just that sailing in these waters is great adventure.

A third reason is that the medicine is simply too difficult to take properly.

A third reason is the spinelessness of the Federal Election Commission, the government's main enforcement agency.

A third reason is to prove that Taiwan is not an issue.

A third reason is that fixed terms would erase the political premium on appointing justices at young ages.

A third reason was the global recession and cutbacks in other planned solar-power plant projects.

A third reason was: "Well, it would be embarrassing to introduce him or her to the family".

A second reason is sustainability.

A second reason is globalization.

A second reason is the rat race.