Environment is related to Conservation. Conservation is a type of Improvement. Repair is a type of Improvement. 
Arrest is a synonym of Check. Check entails/necessarily involves Move. Move is related to Hold. 
Environment <--RelatedTo--> Conservation --IsA--> Improvement <--IsA-- Repair 
Arrest <--Synonym--> Check --Entails--> Move <--RelatedTo--> Hold 