Supplementary Material

The dataset includes 1,280,918 speech fragments of Greek parliament members in debate order exported from 5,355 parliamentary sitting record files, with a total volume of 2.12 GB. The speeches extend chronologically from July 1989 up to July 2020. Table 1 shows the contents of the dataset. The names of the speakers are provided in the format "last_name patronym first_name (nickname)". In cases with more than one first or last names, the names that belong to the same category (first or last) are connected with a dash, e.g., "merk-ouri stamatiou amalia-maria (melina)". A parliamentary period is defined as the time span between one general election and the next. A parliamentary period includes multiple parliamentary sessions. A session is a time span of usually 10 months within a parliamentary period during which the parliament can convene and function as stipulated by the constitution.