How to I can extract substrings from a string ?

List<string> Words = new List<string>();
List<string> Tags = new List<string>();

var splitItems = inputStr.Split(new char[] {'<', '>'}, StringSplitOptions.RemoveEmptyEntries);

for (int i = 0; i < (splitItems.Length); i+= 2)
{
    Words.Add(splitItems[i]);
    Tags.Add(splitItems[i + 1]);
}

([^<>]*)<[^<>]*>
[^<>]*<([^<>]*)>

string inputStr = "this<zm>  is<vbb>  an<aa> simple example<jh>  for<ppr>  your<zm>";
string[] tokens = inputStr.Split(new char[] { '<' },StringSplitOptions.RemoveEmptyEntries);
string[] substrs = tokens.Select(s => s.Contains('>') ? s.Split(new char[] { '>' }, StringSplitOptions.RemoveEmptyEntries).Count() > 1 ? s.Split(new char[] { '>' }, StringSplitOptions.RemoveEmptyEntries)[1] : string.Empty : s).ToArray().Where(val => !string.IsNullOrEmpty(val)).ToArray();
string[] strlabels = tokens.Select(s => s.Contains('>') ? s.Split(new char[] { '>' }, StringSplitOptions.RemoveEmptyEntries)[0] : string.Empty).ToArray().Where(val => !string.IsNullOrEmpty(val)).ToArray();