Regarding Subparagraph 1, Paragraph 1, Article 17 of the Act that governs application of the amount of tax exemption for dependents, where children of the taxpayer or siblings of the taxpayer or his/her spouse that attained the age of majority and are enrolled in school or supported by the taxpayer due to physical or mental disability, the taxpayer shall submit the school enrollment certificate or a copy of the handbook for the disabled and mentally retarded specified or other such recognized proof issued by the relevant government organization, or a copy of a medical diagnosis issued by a specialist physician as required in Paragraph 1, Article 19 of the Mental Health Act.