Harvest is related to Garden. Garden is related to Organized. Organized is related to Gang. Gang is a synonym of Crowd. 
Additional is related to Interest. Interest is related to Charge. 
Harvest <--RelatedTo--> Garden <--RelatedTo--> Organized <--RelatedTo--> Gang <--Synonym--> Crowd 
Additional <--RelatedTo--> Interest <--RelatedTo--> Charge 