provide a description of this financial index. keep it short and minimally descriptive. in addition, provide an alternative index name using synonyms, include 3FR as a prefix for the new index name.

Example:

Input: 
Original Index Name: Global-Aggregate Index Value Hedged USD

Output: 
{
    'index_name' : '3FR Global Investment Grade Index Dollar Hedged',
    'summary': 'The 3FR Global Investment Grade Index Dollar Hedged is a broad-based measure of the global investment-grade fixed income markets. The index includes securities from developed and emerging markets worldwide, denominated in various currencies. The 'Dollar Hedged' component indicates that the index is currency-hedged to the US dollar, mitigating the impact of foreign currency fluctuations on investment returns.'
}

Input:
MSCI ACWI Select Metal & Mining Producers ex Gold & Silver IMI Gross TR Index