Wave is related to Arm. Armed is a form of Arm. Armed is related to Guard. 
Line is related to Finger. Finger is related to Feel. Feel is related to Emotional. Emotional is related to Support. 
Wave <--RelatedTo--> Arm <--FormOf-- Armed <--RelatedTo--> Guard 
Line <--RelatedTo--> Finger <--RelatedTo--> Feel <--RelatedTo--> Emotional <--RelatedTo--> Support 