Simplify the following text for a Grade 2 native English-speaking person.
Original: Although most aÃ aÃ is grown conventionally , in 2003 USDA Organic certification was established for the aÃ aÃ palm and later implemented fair trade certification .
Simplified: The AÃ aÃ palm ( Assai palm ) is a type of palm tree . There are seven different types of AÃ aÃ palms .