(AGI) Washington, July 15 - The Chairman of the FederalReserve, Janet Yellen, said that stock quotes of smallenterprises, social media and biotechnology businesses 'seem tobe inflated'. The statement was made during a semi-annualappearance in front of the Senate Banking Committee, and had animmediate effect on the major stocks in the sector. Facebooklost 1.88 percent, Twitter slipped 0.5 percent and Linkedinshed 0.61 percent. . .