revision preference src: He contemplated a return to Romania as a soldier or a monk. He was on a continuous search for effective antidepressants, medicating himself with passion flower extract, and, eventually, with methamphetamine. <SEP> tgt: Contemplating a return to Romania as a soldier or a monk, he was on a continuous search for effective antidepressants, medicating himself with passion flower extract, and, eventually, with methamphetamine.