tier,threshold,kept_share,n,roof_accuracy haiku,0.0,1.0,936,0.9497863247863247 haiku,0.6,0.9978632478632479,934,0.9507494646680942 haiku,0.7,0.9732905982905983,911,0.9549945115257958 haiku,0.8,0.8771367521367521,821,0.9598051157125457 haiku,0.9,0.026709401709401708,25,0.88 sonnet,0.0,1.0,1045,0.9502392344497608 sonnet,0.6,0.9856459330143541,1030,0.9553398058252427 sonnet,0.7,0.9272727272727272,969,0.9566563467492261 sonnet,0.8,0.723444976076555,756,0.9682539682539683 sonnet,0.9,0.04880382775119617,51,1.0