Mrs  thinks that that is best provided by two carers living in the house, each on duty for half the week, such carers being directly employed by the , by contrast Mrs  says that an agency should provide a carer all the time from its available pool, she envisages that in practice three or four carers would share the work, they differ over the full number of hours care to be provided by hired carers, Mrs  envisages seventeen hours a day in total, Mrs  ten hours, again I emphasize that the artificiality of the working in precise number of hours, where you have somebody actually living in the house all the time and available to er carry out active care at any time, but of course carers  are not always having to do things which might be described as active care.