Simplify the following text for a Grade 9 native English-speaking person.
Original: In 1987 , a land claim was lodged for the land in the former Goodparla and Gimbat pastoral that that were to be included in Stage Three of Kakadu .
Simplified: In 1987 , a land claim was made for the land in the Goodparla and Gimbat pastoral leases that were to be included in Stage Three of Kakadu .