<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.johnson amekuwa mnyonge, amejirudia mara nyingi hadi ni ngumu kujua nini cha kutarajia, alisema mwanadiplomasia.  <response>: johnson has been such a chameleon, he has reinvented himself so many times that it is hard to know what to expect really, said the diplomat. 