Appoint is related to Elect. Elect is related to Process. Decrease is a type of Process. Diminish is a type of Decrease. 
you are likely to find Noise in/at/on Work. Noise is related to Disturbing. 
Appoint <--RelatedTo--> Elect <--RelatedTo--> Process <--IsA-- Decrease <--IsA-- Diminish 
Work <--AtLocation-- Noise <--RelatedTo--> Disturbing 