马铃薯在法国是蔬菜，在荷兰则不是。

In France, potatoes are vegetables, while in the Netherlands, they are not.

Source: Tatoeba

Sentence Composition

1 马铃薯 mǎlíngshǔ potato
2 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
3 法国 Fǎguó France
=4 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=4 是 shì variant of 是 shì
5 蔬菜 shūcài vegetables
6 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
7 荷兰 Hélán Holland; the Netherlands
8 则 zé
  1. (literary) (conjunction used to express contrast with a previous clause) but; then
  2. (bound form) standard; norm
  3. (bound form) principle
  4. (literary) to imitate; to follow
  5. classifier for written items
=9 不是 bùshì
  1. no
  2. is not
  3. not
=9 不是 bùshi fault; blame