Card is related to Introduction. Introduction is related to Meet. Meet is a synonym of Suitable. 
Tough is related to Strength. Strength is related to Rest. Rest is related to Light. Light is a synonym of Soft. 
Card <--RelatedTo--> Introduction <--RelatedTo--> Meet <--Synonym--> Suitable 
Tough <--RelatedTo--> Strength <--RelatedTo--> Rest <--RelatedTo--> Light <--Synonym--> Soft 