<prompt> Translate the following text to SwahiliBig Tobacco has lied at every step, denying the addictive properties of nicotine and the causal link between tobacco tar and cancer.  <response>: Kampuni kubwa za tumbaku zimedanganya kila hatua, zikikanusha sifa za kulevya za nikotini na uhusiano wa kisababishi kati ya lami ya tumbaku na kansa. 