Any plan, fund, or program which was established or maintained by an employer or by an employee organization, or by both, to the extent that such plan, fund, or program was established or is maintained for the purpose of providing for its participants or their beneficiaries, through the purchase of insurance or otherwise,
medical, surgical, or hospital care or benefits, or benefits in the event of sickness, accident, disability, death or unemployment, or vacation benefits, apprenticeship or other training programs, or day care centers, scholarship funds, or prepaid legal services, or
any benefit described in section 302(c) of the Labor Management Relations Act, 1947 (other than pensions on retirement or death, and insurance to provide such pensions).