Dist. Ct. did not err in granting plaintiff-pension fund’s motion for summary judgment in ERISA action against defendant-employer seeking defendant’s contribution to pension fund required under 2005 collective bargaining agreement, as well as Participation and Trust Agreements that called for defendant to make said payments throughout life of 2005 collective bargaining agreement, even though defendant and union entered into 2008 collective bargaining agreement 6 weeks prior to expiration of 2005 collective bargaining agreement that called for immediate stoppage of said payments. Terms of Participation and Trust Agreements expressly and clearly required defendant to make pension contributions throughout stated term of 2005 collective bargaining agreement and prohibited defendant from making subsequent agreement to stop making said payments during said term. Dist. Ct. also did not err in denying defendant’s request to expand discovery,even though defendant asserted that such discovery was necessary to identify evidence of latent ambiguities in terms of subject documents.