Simplify the following text for a Grade 12 native English-speaking person.
Original: She became the Deputy Leader of the Scottish National Party in 2004 and because Alex Salmond was still an MP , she was the SNP 's leader in the Scottish Parliament until the 2007 Scottish Parliament election .
Simplified: Both were subsequently elected and Sturgeon led the SNP in the Scottish Parliament from 2004-2007 until Salmond was elected back to the Scottish Parliament in the 2007 election .