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• Identities These are the distributions of mentions of various identities in the dataset. Note that these are not
speciﬁcally identities of people, and can include other things as well (e.g., "the American company was...") and
that this signal is intended to support multilingual text.

• English pronouns The distribution of English gender pronouns are measured with string matching, with female
(she, her, hers, herself), male (he, him, his, himself) and unspeciﬁed (they, them, their, theirs, theirself, themself,
themselves).

• English grammatical person The distribution of English grammatical pronouns is included, with 1st person (I,
me, my, mine, myself, we, us, our, ours, ourselves) and 2nd person (you, your, yours, yourself, yourselves) and
3rd person including all pronouns (it, its, itself plus all listed in English pronouns above).

• English toxicity probability The distribution of toxicity probability across three buckets, calculated using the
PaLM 2 Technical Report