The significance test results summarized in Table 4 are unambiguous: for many proto-role properties, ensembling helps to improve performance significantly (SPR1: 14 18 cases; SPR2: 7 14 cases; significance level: p < 0.05).
for few cases, ensembling resulted in significantly worse predictions (SPR1: change of location; SPR2: change of location, instigated and partitive; significance level: p < 0.05).