MILLI

Second PP idomsonly P if milli takes no complement:

 (IP-SUB (NP-SBJ *con*)
	 (VBDI fór-fara)
	 (ADVP-LOC (ADV þar-þar))
	 (PP (P á-á)
	     (PP (P milli-milli)))))))))

If there were only one P involved, then the PP would be parsed as postpositional, parallel to "darüber" in German or "there about" in the English corpora as below:

 (PP (ADV there) (P aboute))