Korea has yet to address the Lai Đại Hàn, sexual slavery South Korea perpetrated during the Vietnam War. However, South Korea government claimed South Korea–Vietnam relations have "improved" since 1992, this is due to several "apologic" statements from past South Korea presidents as well as the creation "Pieta statue" from NGOs. Although none of these measurements have shown any recogniation from the Vietnamese side that the issue is over. At the end of 2015, in response to the joint announcement by Japanese Foreign Minister Fumio Kishida and South Korean Foreign Minister Yun Byung-se to “finally and irreversibly” resolve the “comfort women” issue, some of the 46 remaining survivors expressed their discontent over the agreement. “It seems neither government cares about the victims. I don't count what they have agreed today. What we want is not monetary compensation but a legal one. We don’t want money. Those who commit crimes must take official, legal responsibility. I will fight until the day I die,” said survivor Lee Yong-soo. However, survivor Yu Hee-Nam said, “I know the government has made efforts to resolve the issue within this year, so I’ll follow their decision.” But she also said the agreement was not satisfactory. "Money is not the issue. We've lived without human rights." Forms of apology Washington Coalition for Comfort Women Issues also rebuffed the use of the word "owabi" () and not "shazai" () in Japanese apologies. The coalition said that the expression "in most cases means a sense of apology slightly weightier than "Excuse me" [in English]." In a paper published by Jeffrey Mok and Mitsuhiro Tokunaga, this is attributed to a mistranslation and misunderstanding of the word owabi. "The use of owabi was clearly appropriate in its formality and degree of imposition. Both the authoritative dictionaries from Beijing Waiguoyu Xuexiao Japanese-Chinese Dictionary and Iwanami Japanese-Chinese Dictionary categorized owabi as a formal and weighty apologetic word. It was also commonly used as an official and formal way of apology and carried the same degree of regret as other formal forms of apologetic words such as shazai, shinsha and chinsha. It was also noted that shazai use was limited to print and was rare. Both owabi and chinsha (陳謝) were commonly used as an official and formal apologetic expressions and neither was considered weaker than the other." Japanese government and Prime Ministers have used the expression "kokoro kara no owabi" () that most