Rules with this context
- JATS-0027-003mml @columnalign attribute must contain values from the list 'left', 'center', 'right'
- JATS-0027-004mml @groupalign attribute must contain values from the list 'left', 'center', 'right', 'decimalpoint'
- JATS-0027-002mml @rowalign attribute must contain values from the list 'top', 'bottom', 'center', 'baseline', 'axis'
- JATS-0027-001mml:math must contain text in a descendant element