<human>:  What do you know about the 2019 protests in Hong Kong?
<bot>: I know that the 2019 protests in Hong Kong were a series of large-scale pro-democracy demonstrations that began in June of that year. They were sparked by a proposed extradition law and were characterized by widespread popular unrest, civil disobedience, and occasional violent clashes between protesters and police. The protests have been ongoing since then, with many hoping for greater autonomy and democratic reform.