Experiment No.1  
schema design
Schema Group #1 Otagai is in the embedded object position.
Schema A1 ok NP-ga/wa [NP1-ga otagai-o/ni V-ru/ta {to/no ka}] V-ru/ta   ( under the reciprocal reading of otagai with NP1 as its "antecedent" )
Schema B1 * NP1-ga/wa [NP-ga otagai-o/ni V-ru/ta {to/no ka}] V-ru/ta   ( under the reciprocal reading of otagai with NP1 as its "antecedent" )
Schema C1 ok NP1-ga/wa [NP-ga karera-o/ni V-ru/ta {to/no ka}] V-ru/ta   ( with the coreference between karera and NP1 )
Schema Group #2 Otagai is in the embedded object position. The intended antecedent is the relative head.
Schema A2 ok [[otagai-o/ni V-ru/ta] NP1]   ( under the reciprocal reading of otagai with NP1 as its "antecedent" )
Schema B2 * [[[NP-ga otagai-o/ni V-ru/ta {to/no ka}] V-ru/ta] NP1]   ( under the reciprocal reading of otagai with NP1 as its "antecedent" )
Schema C2 ok [[[NP-ga karera-o/ni V-ru/ta {to/no ka}] V-ru/ta] NP1]   ( with the coreference between karera and NP1 )
example design
Lexical Group #1 に投票する
Lexical Group #2 を推薦する
( examples change )
test design accept until 2013/12/31
Yes-or-No (in sets) Included Times shown = 1 The number of Example tokens = 12
Yes-or-No (one each) Included Times shown = 1 The number of Example tokens = 12
Five-ranking (in sets) Included Times shown = 1 The number of Example tokens = 12
Five-ranking (one each) Included Times shown = 1 The number of Example tokens = 12