In this task, you will delve deeper into the practical aspects of web data extraction. Your primary resource will be the W$3$Schools $-$ Python Strings for the following practice.

Practice $1$: Grab all the sub$-$titles using XPath

hint: grab all the h$2$

Answer:

$//*[$@id$=$"main"$]/$h$2$

Practice $2$: Grab all the example blocks using XPath

hint: there are $11$ examples.

$[$Type your answer here$]$

Practice $3$: Click Next button using XPath

hint: there is only one XPath

$[$Type your answer here$]$