I appreciate your help man ..
But the meaning is so different but cool.
I've looked for the different and I found it
Here is the real answer about them and you can get it easily inshaallah.....
Sentence training It means practice is possession of the sentence...
And the other one it work on the sentence right ...gerund it is Extremely useful the gerund understanding. Look man I can easily for you...you can imagine a apostrophe possessive after it like this but be careful that's not true is a particular fake right..
Sentence 's training....