Update README.md

README.md

@@ -92,11 +92,22 @@ The original sentences are in Spanish and come from the [Spanish Common Voice Co
 
 #### Initial Data Collection and Normalization
 
-[COMPLETAR]
+We extracted a set of 2,232,261 sentences from the [Spanish Common Voice Corpus](https://github.com/common-voice/common-voice/tree/main/server/data/es) v.07.
 
-Selected sentences were translated from Spanish into Catalan by a professional translation company. Subsequently, they were adapted into Valencian by an expert team from the Universitat d'Alacant.
+An automatic selection was performed, removing sentences that:
 
-The same corpus of sentences was translated into Galician and Basque using MT tools.
+*  Were repeated.
+*  Exceeded 14 words in length.
+*  Ended with a preposition.
+*  Were in lowercase but Out of Vocabulary (OOV), utilizing the Hunspell dictionary.
+*  Contained repeated words.
+*  Featured characters not existing in Spanish or sequences of characters impossible in Spanish.
+
+This filtering process resulted in the current selection of sentences. For some of these sentences, we conducted manual or automatic adjustments, such as capitalization, punctuation fixes, etc.
+
+The selected sentences were translated from Spanish into Catalan by a professional translation company. Subsequently, they were adapted into Valencian by an expert team from the Universitat d'Alacant.
+
+The same corpus of sentences was translated into Galician and Basque using machine translation (MT) tools.
 
 A subsequent version of the corpus will include reviewed translations and source sentences.