Problem: S1: However , a rational curve '' is not '' a curve parameterized over the rationals , but a curve which can be defined by rational functions .
S2: A rational curve '' is '' , however , not a curve parameterized over the rational , but a curve that can be defined by rational functions .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Primidone also causes exfoliative dermatitis , Johnson -- Stevens syndrome , and toxic epidermal necrolysis .
S2: Primidone also causes exfoliative dermatitis , Johnson - Stevens -- Syndrome and toxic epidermal necrolysis .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: 22.0 % were German , 20.5 % Irish , 16.4 % Polish , 8.9 % Italian and 7.8 % of English origin according to the 2000 census .
S2: 22.0 % were of German , 20.5 % Irish , 16.4 % Italian , 8.9 % Polish and 7.8 % English ancestry according to Census 2000 .

Do S1 & S2 convey the same information?

A:
no