Thank you, Mr. Chairman. What is the purpose of geotechnical tests of the soil when, in fact, in the end they just ignore them and build houses there anyway. The Housing Corporation's expensive houses crack, especially in today's building construction as plaster walls are very rigid and easily cracked when the house moves. Can the Minister tell me why they cannot find out that this ground is unstable after the soil is tested, or geotechnical testing is done? In the construction process the ground is not yet stable but they proceed with it anyway.