Improved dataset's structure and added much more samples.

.gitattributes

@@ -57,3 +57,5 @@ test_all.json filter=lfs diff=lfs merge=lfs -text
 train_all.json filter=lfs diff=lfs merge=lfs -text
 test_dataset.json filter=lfs diff=lfs merge=lfs -text
 train_dataset.json filter=lfs diff=lfs merge=lfs -text
+test.json filter=lfs diff=lfs merge=lfs -text
+train.json filter=lfs diff=lfs merge=lfs -text

test.json

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0aa125e0809f3eb814b2f2141a627249b85f8dbd9cd92670e910a113ea38f9ba
+size 104224077

train.json

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ffc6a587448026753b2721b13ccb519a70149f50c3550ea0b12d231c6c7c02a9
+size 339977528