Simplify the following text for a Grade 8 native English-speaking person.
Original: On 19 May , the Berlin Zoo offered to buy Knut from NeumÃ 1\/4 nster and therefore negate their financial claim on the two-year-old polar bear .
Simplified: On 19 May , Berlin Zoo offered to `` buy '' Knut from NeumÃ 1\/4 nster and take their financial claim on the two-year-old polar bear .