sentence: In addition , S1_39674301 , S6_20797781 , S7_18722403 , S8_9946213 , and S11_19165397 ( Hsu and Tung 2015 ; Yang et al. 2019a , 2019b ; Septiningsih et al. 2013 ; Zhang et al. 2017 ; Jiang et al. 2006 ; Angaji et al. 2009 ) were consistent with previous research results and were included .