( ( ( ( ( ( ( ( ( ( ( (lfigure sequence of insertions into ( tree(ainitial tree with one item(binsertion of (cinsertion of (dinsertion of which causes an overflow(esplitwhich causes the creation of new root node( after the split(ginsertion of (hinsertion of which causes an overflow(isplit(jafter the split(kinsertion of (linsertion of