id	keyword
eurjchem-1087	n n
eurjchem-1087	o ar
eurjchem-1087	n r
eurjchem-1087	scheme
eurjchem-1087	c6h4
eurjchem-1087	compound
eurjchem-1087	c6h4 r
eurjchem-1087	ch3
eurjchem-1087	ar n
eurjchem-1087	= p
eurjchem-1087	derivatives