Foot is similar to Horse. 
you are likely to find Laser in/at/on Laboratory. you are likely to find Instrument in/at/on Laboratory. Instrument is related to Mechanical. Mechanical is a synonym of Technical. 
Foot <--SimilarTo--> Horse 
Laser --AtLocation--> Laboratory <--AtLocation-- Instrument <--RelatedTo--> Mechanical <--Synonym--> Technical 