Simplify the following text for a Grade 9 native English-speaking person.
Original: Parry resigned his Oxford appointment on doctor 's advice in 1908 and in the last decade of his life produced some of his best-known works , including the Symphonic Fantasia ' 1912 ( also called Symphony No. 5 ) , the Ode on the Nativity ( 1912 ) , Jerusalem ( 1916 ) and the Songs of Farewell ( 1916 -- 1918 ) .
Simplified: During the last decade of his life he wrote some of his best works , including the Symphonic Fantasia ' 1912 ( also called Symphony No. 5 ) , the Ode on the Nativity ( 1912 ) , Jerusalem ( 1916 ) and the Songs of Farewell which includes the song â My Soul , there is a Countryâ .