Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Pirofosfato-it#Sense
Pyrophosphate-fr#Sense
Pyrophosphat-de#Sense
Pyrofosfaat-nl#Sense
Pyrofosfat-da#Sense
PP2-de#Sense
PP-de#Sense
Difosfaat-nl#Sense