Matita HB, tre esempi. Esercitazione tecnica n°4.

New channel Alberto Goglio: title sample judged 'whole' (Nearly every upload is a structured drawing/painting lesson, technique exercise, or color theory lecture with clear inst); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.