Simplify the following text for a Grade 11 native English-speaking person.
Original: The EP was recorded in 1987 in Seattle , Washington at Reciprocal Studios with producer Jack Endino , who also produced albums for Nirvana and Mudhoney .
Simplified: The EP was recorded in 1987 in Seattle 's Reciprocal Studios with producer Jack Endino , who also produced albums for Nirvana and Mudhoney .