Entity/Person.php
public function setCenter(\Chill\MainBundle\Entity\Center $center)
    {
        $this->center = $center;
        return $this;
    }
public function setCenter(\Chill\MainBundle\Entity\Center $center)
    {
        $this->center = $center;
        return $this;
    }
Set the center

@param \Chill\MainBundle\Entity\Center $center
@return \Chill\PersonBundle\Entity\Person