Determine which legal clause the following paragraph belongs to: It shall be a condition of any notice given by the F under under clause 5 or 6.4 that the F under or its appointee accepts liability for payment of the sums due and payable to the Contractor under the Building Contract and for performance of the Employer' s obligations including payment of any sums outstanding at the date of such notice. Upon the issue of any notice by the F under under clause 5 or 6.4, the Building Contract shall continue in full force and effect as if no right of termination of the Contractor' s employment under the Building Contract, nor any right of the Contractor to treat the Building Contract as having been repudiated by the Employer had arisen and the Contractor shall be liable to the F under and its appointee under the Building Contract in lieu of his liability to the Employer. If any notice given by the F under under clause 5 or 6.4 requires the Contractor to accept the instructions of the F under' s appointee, the F under shall be liable to the Contractor as guaran to