EINS OG

When EINS OG takes an NP complement the parse is as follows:

( (IP-MAT (NP-SBJ (NPR-N Indriði-indriði))
	  (VBDI gekk-ganga)
	  (RP (RP til-til) (CONJ og-og) (RP frá-frá))
	  (ADJP (ADVR eins-eins)
		(PP (P og-og)
		    (NP (OTHERS-N aðrir-annar) (NS-N sveinar-sveinn))))
	  (. ,-,)))

See ADVR heads of ADJP

For a comparative with clausal structure, see: CP-CMP