Expand is a synonym of Boom. Boom is a type of Noise. Noise is related to Term. Term is related to Toy. 
Witness is related to Information. you are likely to find Information in/at/on Meeting. 
Expand <--Synonym--> Boom --IsA--> Noise <--RelatedTo--> Term <--RelatedTo--> Toy 
Witness <--RelatedTo--> Information --AtLocation--> Meeting 