妈妈看出我心思，把妹妹从森林里捡回来的一颗箐板栗，悄悄地塞进我手心。
B-Person I-Person O O B-Person O O O O B-Person I-Person O B-Location I-Location I-Location O O O O B-Metric I-Metric B-Thing I-Thing I-Thing O O O O O O B-Person B-Location I-Location O