Discussion is related to Conservation. Conservation is related to Movement. Movement is related to Chew. Chew is related to Statue. 
Song is related to Independent. Independent is related to Attitude. Attitude is related to Hope. Hope is related to Box. 
Discussion <--RelatedTo--> Conservation <--RelatedTo--> Movement <--RelatedTo--> Chew <--RelatedTo--> Statue 
Song <--RelatedTo--> Independent <--RelatedTo--> Attitude <--RelatedTo--> Hope <--RelatedTo--> Box 