That is to say, from the same ARG-ST, a clausal complement obtains if it is directly mapped to VAL features through ARP, an adverbial clause if it goes through Argument Extension before ARP, and an IHRC if goes through a lexical rule which simulates the Argument Extension while overriding ARP.
it is proposed that the licensing of IHRC is endorsed by the defeasibility of ARP, which has been tacitly maintained undefeasible cross-linguistically Wasow 1999, Bouma, et al.