Pick a Random Word and Next x Words from Text

I have articles with more than 600 words and i'm trying to pick a random word and next x(num) words too after that first word that picked up randomly.

For Example : This is my article

Lorem ipsum dolor sit amet, cu corpora voluptatum consectetuer mel. Sit at populo dolorum, unum vocent fuisset eam ne. Eu mel alia vocibus delicata. Ne ius euismod convenire dissentias, habeo persequeris instructior sea ut, nec praesent instructior eu.

Ne mea democritum abhorreant, diceret electram similique et usu. Vim quis quaestio forensibus ea, doming tacimates ut sed, mutat efficiantur nam ut. Case forensibus ut cum. Vis ex quas delenit, ea ceteros accusamus abhorreant vix. Ius id homero ponderum.

and let's say the code took randomly "amet" word from the article and i want next 10 words with it. so the output should be :

amet cu corpora voluptatum consectetuer mel Sit at populo dolorum

what do you suggest me to solve this ? Thanks.