Rava gives a third interpretation of why one can claim ownership over land one has been living in for three years. After a few comments by Abaye, Rava clarifies his statement and gives a conclusive explanation. Rav Huna says that the three years need to be consecutive. Various comments are made on this statement including questions, qualifying statements, etc. The gemara begins to brings actual cases that happened and discuss what the halacha is in the various cases.