Complex sentence: Usually, a car is labeled a Lemon if the same problem occurs 3 times in a row over a short period, usually, if you get a Lemon Lemon laws will make the company buy the car back or it.
Split into simpler sentences: Usually, a car is labeled a lemon if the same problem occurs 3 times in a row over a short period. In most cases, if you get a lemon, Lemon laws will make the company buy back the car or it.