a gap

{"score":[8,9]}

{"score":[9,8]}

{"score":[8,9]}

{"score":[0,8]}

{"id":[null,215785755]}

{"score":[0,9]}

{"id":[null,215785752]}

{"id":[170516585,null]}

{"score":[8,9]}

{"score":[0,8]}

{"id":[null,215397500]}