Explicit is similar to Express. Express is related to Clothing. Clothing is related to Shirt. Shirt is related to Coat. 
Gathering is related to Meeting. you are likely to find Discussion in/at/on Meeting. Discussion is related to Conservation. 
Explicit <--SimilarTo--> Express <--RelatedTo--> Clothing <--RelatedTo--> Shirt <--RelatedTo--> Coat 
Gathering <--RelatedTo--> Meeting <--AtLocation-- Discussion <--RelatedTo--> Conservation 