Ground is related to Mine. you are likely to find Pit in/at/on Mine. 
Laugh is related to Response. Response is a synonym of Reception. Reception is a synonym of Acceptance. Acceptance is the opposite of Denial. 
Ground <--RelatedTo--> Mine <--AtLocation-- Pit 
Laugh <--RelatedTo--> Response <--Synonym--> Reception <--Synonym--> Acceptance <--Antonym--> Denial 