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(2)the husband or wife commits serious misconduct or physically assaults the other or an ascendant of the other to the extent of causing harm, or defames the other or an ascendant of the other in a serious manner, the other may institute the action;
(3)the husband or wife has wilfully abandoned the other for over one year, or fails to provide appropriate support or maintenance, or commits an act which is seriously adverse to the state of being husband and wife to the extent that the other is no longer able to continue the cohabitation as husband and wife, the other may institute the action;
(4)the husband or wife has been sentenced by a final judgment to imprisonment on account of theft, snatching, robbery, gang robbery, piracy, or money counterfeiting or alteration, or has been sentenced by a final judgment to imprisonment of more than three years on account of a different offence, the other may institute the action;
(5)the husband or wife has been adjudged by a court to have disappeared, the other may institute the action as long as such adjudgment is not revoked by the court;
(6)the husband or wife has been adjudged incompetent by a court on account of insanity for more than three consecutive years from the day of the adjudgment and such insanity has no possibility of recovery and is considerable to the extent that
