segmentation: v2 power cut
rank.candidate: v 2po wer cut v 2powerc ut v2 pow er cut v2pow er cut v2p owe r cut v2 po wer cut v2powe r cut v2 power cu t v2powerc ut v2 power c ut v2po we r cut v 2p ower cut v2 powe r cut v2 powercut v 2pow er cut v2power cut v 2power cut v2p ower cut v2po wer cut v2 power cut