SEM

SEM is always tagged C.

Every clause containing a SEM complementizer also contains a gap.

SEM comparatives do not have an introducing P head: they are just CP-CMP, with SEM in C and a gap of the appropriate kind in Spec(CP). Note that this is not the same as the treatment of "as"-comparatives in the PPCME2, PPCEME, even though SEM is sometimes translated similarly to English "as".

When SEM introduces a relative clause, see CP-REL.

When sem means 'as' or 'like', as in sem barn 'as a child' and results in a gapped structure, treat sem as a complementizer that introduces a CP-ADV clause which does not have to contain a subject, cf. the example below:

(IP-SUB (NP-SBJ (PRO-N hann-hann))
	      (MDDS skyldi-skulu)
	      (NP-OB1 (PRO-D henni-hún))
	      (VB fylgja-fylgja)
	      (CP-ADV (WADVP-4 0)
		      (C sem-sem)
		      (IP-SUB (ADVP *T*-4)
			      (NP-OB1 (NP-POS (PRO-D sinni-sinn))
				      (N-D móður-móðir)))))))))

See also the discussion of SEM in CP-CMP.

SEM AÐ

We treat SEM AÐ as a single C, see Splitting and joining words.

(ADVP (ADVR svo-svo)
	(CP-CMP-SPE (WADVP-1 0)
	    (C (C21 sem-sem) (C22 að-að))
	    	(IP-SUB-SPE (IP-SUB-SPE (ADVP *T*-1)
		    (VBPI þekkir-þekkja)
		    (NP-OB1 (PRO-A mig-ég))
		    (NP-SBJ (NP-POS (PRO-N minn-minn))
			    (N-N faðir-faðir)))