Factor is related to Answer. Answer is a synonym of Appear. Appear is a synonym of Offer. 
Pack is related to Card. Card is related to Element. Element is related to Carbon. Carbon is related to Organic. 
Factor <--RelatedTo--> Answer <--Synonym--> Appear <--Synonym--> Offer 
Pack <--RelatedTo--> Card <--RelatedTo--> Element <--RelatedTo--> Carbon <--RelatedTo--> Organic 