YOU SAID:

this is unfair as Ivan obviously is really dumb because he smells like cheese which is an obvious disadvantage

INTO JAPANESE

イワンはチーズの匂いがするので明らかに本当にバカなので、これは不公平です、これは明らかな不利です

BACK INTO ENGLISH

This is unfair because Ivan is obviously really stupid because he smells like cheese, this is a clear disadvantage

INTO JAPANESE

これは不公平です、なぜならイワンはチーズのような匂いがするから明らかに本当に愚かだからです、これは明らかに不利です

BACK INTO ENGLISH

This is unfair, because Ivan is obviously really stupid because he smells like cheese, which is clearly a disadvantage

INTO JAPANESE

これは不公平です。イワンはチーズのような匂いがするので明らかに本当に愚かであり、これは明らかに不利です

BACK INTO ENGLISH

This is unfair. Ivan is obviously really stupid because he smells like cheese and this is clearly a disadvantage

INTO JAPANESE

これは不公平だ。イワンは明らかに本当に愚かです、なぜなら彼はチーズのような匂いがするからです、そしてこれは明らかに不利です

BACK INTO ENGLISH

This is unfair. Ivan is obviously really stupid, because he smells like cheese, and this is clearly a disadvantage

INTO JAPANESE

これは不公平だ。イワンは明らかに本当に愚かです、なぜなら彼はチーズのような匂いがするからです、そしてこれは明らかに不利です

BACK INTO ENGLISH

This is unfair. Ivan is obviously really stupid, because he smells like cheese, and this is clearly a disadvantage