High is similar to Advanced. Advanced is a synonym of Professional. Engineer is a type of Professional. Engineer is a type of Operator. 
Note is a synonym of Add. Add is related to Calculation. Calculation is related to Measure. Measure is related to Century. 
High <--SimilarTo--> Advanced <--Synonym--> Professional <--IsA-- Engineer --IsA--> Operator 
Note <--Synonym--> Add <--RelatedTo--> Calculation <--RelatedTo--> Measure <--RelatedTo--> Century 