Question: Who was the spouse of the president of the Russian republic at the time the country BRDM-2 originated from disintegrated?

<P0-S0> The dissolution of the Soviet Union occurred on December 26, 1991, officially granting self - governing independence to the Republics of the Soviet Union. <P0-S1> It was a result of the declaration number 142 - Н of the Supreme Soviet of the Soviet Union. <P0-S2> The declaration acknowledged the independence of the former Soviet republics and created the Commonwealth of Independent States (CIS), although five of the signatories ratified it much later or did not do so at all. <P0-S3> On the previous day, 25 December 1991, Soviet President Mikhail Gorbachev, the eighth and final leader of the Soviet Union, resigned, declared his office extinct, and handed over its powers -- including control of the Soviet nuclear missile launching codes -- to Russian President Boris Yeltsin. <P0-S4> That evening at 7: 32 p.m., the Soviet flag was lowered from the Kremlin for the last time and replaced with the pre-revolutionary Russian flag. <SEP> <P1-S0> originally the benefits received by retirees were not taxed as income. <P1-S1> beginning in tax year 1984, with the reagan - era reforms to repair the system's projected insolvency, retirees with incomes over $25,000 (in the case of married persons filing separately who did not live with the spouse at any time during the year, and for persons filing as ``single ''), or with combined incomes over $32,000 (if married filing jointly) or, in certain cases, any income amount (if married filing separately from the spouse in a year in which the taxpayer lived with the spouse at any time) generally saw part of the retiree benefits subject to federal income tax. <P1-S2> in 1984, the portion of the benefits potentially subject to tax was 50%. <P1-S3> the deficit reduction act of 1993 set the portion to 85%. <SEP> <P2-S0> Raisa Maximovna Gorbacheva ( "Raisa Maksimovna Gorbachyova", , Титаренко; 5 January 1932 – 20 September 1999) was a Russian activist who was the wife of Soviet leader Mikhail Gorbachev. <P2-S1> She raised funds for the preservation of Russian cultural heritage, fostering of new talent, and treatment programs for children's blood cancer. <SEP> <P3-S0> The BRDM-2 ("Boyevaya Razvedyvatelnaya Dozornaya Mashina", Боевая Разведывательная Дозорная Машина, literally "Combat Reconnaissance/Patrol Vehicle") is an amphibious armoured patrol car used by Russia and the former Soviet Union. <P3-S1> It was also known under the designations BTR-40PB, BTR-40P-2 and GAZ 41-08. <P3-S2> This vehicle, like many other Soviet designs, has been exported extensively and is in use in at least 38 countries. <P3-S3> It was intended to replace the earlier BRDM-1, compared to which it had improved amphibious capabilities and better armament. <SEP> <P4-S0> in a nationally televised speech early in the morning of december 25, 1991, gorbachev resigned as president of the ussr – or, as he put it, "i hereby discontinue my activities at the post of president of the union of soviet socialist republics." <P4-S1> he declared the office extinct, and all of its powers (such as control of the nuclear arsenal) were ceded to yeltsin. <P4-S2> a week earlier, gorbachev had met with yeltsin and accepted the fait accompli of the soviet union's dissolution. <P4-S3> on the same day, the supreme soviet of the russian sfsr adopted a statute to change russia's legal name from "russian soviet federative socialist republic" to "russian federation," showing that it was now a sovereign state.