Since it's not always clear where to draw the line when it's about getting text from Wikipedia we're making this clear in this post.
Adding text from Wikipedia isn't good for the wiki since SEO (search engine optimization) can see that. Original text usually leads to a better place in search engines.
Of course you can still add articles without adding text (this is for example adding only the infobox etc.). We won't see it if you just take one or two sentences just because they are fitting it the best. However if you copy whole parts from Wikipedia it'll be different.
We hope you can understand this and of course have fun editing/reading on the wiki!