Complex sentence: Dan lived in the UK but has recently moved to another country which is believed to be Canada but his several jokes like "Well, that's the lie I'm telling at the moment" has caused people to suspect other areas mainly Switzerland and Sweden.
Split into simpler sentences: Dan lived in the UK but has recently moved to another country which is believed to be Canada. However, his several jokes like "Well, that's the lie I'm telling at the moment" has caused people to suspect other areas, mainly Switzerland and Sweden.