    Sentence + Platinuin prices Soared to,23-jear highs earlier  this year after President Bush ( news -webrsites 1 proposed  iivesting, $°4.2:billon for research on foel célhpoweréed  vehicles . -    Sentince'2: Platinyin prices-Zoared to 23.yéar highs eal  ihis year after-ULS. President George: W. Bush’ peopased  investing’ $1.2 billon for Feséarch ‘on. fuel ‘cell poweréd  vehicles." 3:."* . ag °    