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. Author manuscript; available in PMC: 2017 Jun 16.
Published in final edited form as: Lang Acquis. 2016 May 16;23(4):333–360. doi: 10.1080/10489223.2016.1179312

Table 1.

Properties of four different types of RCs in Russian

Type Gap Position Embedding Intervener between the gap and the filler Non-canonical Word Order Case Mismatch
1. Subject-gap Center-embedded No No No
2. Object-gap Center-embedded No Yes Yes
3. Subject-gap Right-branching No No Yes
4. Object-gap Right-branching No Yes No

Note: Greater difficulty of object-gap sentences relative to subject-gap (manifested as a main effect of Gap) would provide support for the impact of non-canonical word order; greater difficulty of center-embedded sentences relative to right branching (manifested as a main effect of embedding) would indicate that extra complexity is due to clause interruption and consequently a greater working memory load; greater difficulty of RCs with non-parallel cases (i.e., manifested as an interaction between Gap and Embedding) would provide support for the Case Matching theory.