Evaluating XPath Expresssions

XPath Result of XPath Evaluation
count(tokenize('W#151#TBH#', '#'))
4
tokenize('W#151#TBH#', '#')[1]
'W'
tokenize('W#151#TBH#', '#')[2]
'151'
tokenize('W#151#TBH#', '#')[3]
'TBH'
tokenize('W#151#TBH#', '#')[4]
''