Jones is selling a house to Smith. The contract between the two specifies that for up to a year after ownership is transferred, Jones will be responsible for repairing any "major structural defects, " defined as defects in the roof or roof-supporting components of the house, that might be found. Jones is not responsible for any other repairs. The house has a truss roof, which means that the only walls that support the roof are the exterior walls. It can be properly concluded from the information above that ["the contract does not oblige Jones to repair any defects in the house's nonexterior walls after ownership of the house has been transferred", 'Jones did not know of any defects in the roof or roof-supporting components of the house at the time the contract was written', 'Smith will be obligated to repair all structural defects in the house within a year after ownership is transferred, except those for which Jones is responsible', 'although other components of the house may contain defects, the roof and roof-supporting components of the house are currently free from such defects']