Indian is related to Rice. Rice is related to Crop. 
Potato is a type of Root. you are likely to find Potato in/at/on Soil. Soil is a synonym of Land. Neck is a type of Land. 
Indian <--RelatedTo--> Rice <--RelatedTo--> Crop 
Root <--IsA-- Potato --AtLocation--> Soil <--Synonym--> Land <--IsA-- Neck 