näytettyjen
Näytettyjen is a Finnish grammatical form: it is the genitive plural of the past passive participle näytetty, which means "shown" or "displayed." In Finnish, participles can function as adjectives and agree with the noun they modify in number and case. Thus näytetty (singular nominative) becomes näytettyjen in the genitive plural. The form is used to indicate possession or relation to the items that have been shown.
The usage of näytettyjen centers on phrases where the noun it describes is in the genitive plural,
Etymology and morphology: the word stems from the verb näytää (to show) plus the past passive participle