The input step automatically attempts to parse
the raw field into a number of child fields denoted by:
_raw.<Field Name>
It parses the raw field assuming that the field is formatted with name value
pairs separated by a new line character, like
this:
<Name1>=<Value1>\n <Name2>=<Value2>\n
If raw field data is not formatted like this, you must post-process those fields with other steps in the transformation flow. Note that your secondary steps may include String variables.