Complex sentence: On 18 February 2015, Davidson appeared in a groundbreaking party election broadcast in which she was seen with her same-sex partner Jen Wilson, a 33-year-old woman of Irish background.
Split into simpler sentences: On 18 February 2015, Davidson appeared in a groundbreaking party election broadcast in which she was seen with her same-sex partner Jen Wilson. In February 2015, she appeared in a party election broadcast with her partner, Jen Wilson, a 33-year-old woman of Irish background.