Instrument is related to Mechanical. Mechanical is related to Automatic. Automatic is a type of Gun. Gun is related to Target. 
Person wants (to) Mobile. Person is related to Portrait. Portrait is related to Family. 
Instrument <--RelatedTo--> Mechanical <--RelatedTo--> Automatic --IsA--> Gun <--RelatedTo--> Target 
Mobile <--Desires-- Person <--RelatedTo--> Portrait <--RelatedTo--> Family 