<prompt> Translate the following text to SwahiliThe fourth set specifies conditions under which the Service may use multi-year test periods to demonstrate that a proposed new service will become compensatory over time.  <response>: Mfumo wa nne unafafanua masharti ambayo Huduma inaweza kutumia vipindi vya majaribio ya miaka mingi ili kuonyesha kwamba huduma mpya iliyopendekezwa itakuwa ya kulipia kwa muda. 