Task: Text Simplification
Input (English): adjacent counties are marin -lrb- to the south -rrb- , mendocino -lrb- to the north -rrb- , lake -lrb- northeast -rrb- , napa -lrb- to the east -rrb- , and solano and contra costa -lrb- to the southeast -rrb-.
Output (English): neighboring counties -lrb- a political and administrative division of a state , providing certain local governmental services -lrb- in the us -rrb- -rrb- are marin -lrb- to the south -rrb- , mendocino -lrb- to the north -rrb- , lake -lrb- northeast -rrb- , napa -lrb- to the east -rrb- , and solano and contra costa -lrb- to the southeast -rrb-.