Calculation is related to Measure. the first thing you do when you Paint is Measure. Paint is the opposite of Scratch. 
Agriculture is related to Crop. Crop is a type of Plant. Plant is a synonym of Works. 
Calculation <--RelatedTo--> Measure <--HasFirstSubevent-- Paint <--Antonym--> Scratch 
Agriculture <--RelatedTo--> Crop --IsA--> Plant <--Synonym--> Works 