For example, the case frame of the verb naru 'become' differs depending on its ni (dative) case as follows: with become a friend In most cases, the main case components are placed just in front of the light verbs so that the automatic parser can detect their relations  As shown in Table 1, KNP detects heads of case components in fairly high accuracy.
in order to collect much reliable data, we discarded modifier-head relations in the automatically parsed corpora in the following cases: • When CMs of case components disappear because of topic markers or others.