They are patrilineal and were in small areas organized into several chiefdoms .
They are patrilineal and were organized into several chieftains in small areas .

Are these two sentences paraphrases of each other?
yes

The Ibirapuera Park is located in this subprefecture , as well as the main campus of Federal University of Sao Paulo and the brazilian headquarters of IBM .
Ibirapuera Park is located in this subprefecture , as is the Brazilian campus of the Federal University of Sao Paulo and the headquarters of IBM .

Are these two sentences paraphrases of each other?
no

The family was noble in Estonia , Livonia , Kurland , Oesel , Swedish nobility and Finnish nobility , only the last two are still recognized today .
The family was ennobled in Estonia , Livonia , Courland , Oesel , Finnish Nobility and Swedish Nobility . Only the last two are still recognized today .

Are these two sentences paraphrases of each other?
yes

In 1989 , London joined the Peace Corps in Malawi and organized a regional program for business development in Africa .
In 1989 , London joined the Peace Corps in Malawi and co-managed a regional business development program in Africa .

Are these two sentences paraphrases of each other?
yes