Shell is related to Egg. Egg is related to Early. Early is related to Pioneer. 
Series is related to Lost. Lost is related to Confusion. Confusion is a type of Combination. Combination is related to Pizza. 
Shell <--RelatedTo--> Egg <--RelatedTo--> Early <--RelatedTo--> Pioneer 
Series <--RelatedTo--> Lost <--RelatedTo--> Confusion --IsA--> Combination <--RelatedTo--> Pizza 