Pick is related to Guitar. Bridge is part of Guitar. Bridge is related to Construction. 
Anxiety is a synonym of Care. Care is related to Human. Human is related to Arm. Arm is a synonym of Power. 
Pick <--RelatedTo--> Guitar <--PartOf-- Bridge <--RelatedTo--> Construction 
Anxiety <--Synonym--> Care <--RelatedTo--> Human <--RelatedTo--> Arm <--Synonym--> Power 