GROUP_BEGIN ('(')
CHARACTER ('a')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('b')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('c')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('d')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('e')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('f')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('g')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('h')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('i')
GROUP_END (')')
GROUP_BEGIN ('(')
CHARACTER ('j')
GROUP_END (')')
BACKREF ('\10')
CHARACTER ('5')