Simplify the following text for a Grade 7 native English-speaking person.
Original: Walt Disney World Resort is owned and operated by the Walt Disney Parks and Resorts segment of The Walt Disney Company .
Simplified: Walt Disney World is in memory of the man who started it all , so people will know his name as long as Walt Disney World is here . '' After the dedication , Roy Disney asked Walt 's widow , Lillian , what she thought of Walt Disney World .