this works fine

[text name="variable_1" default="sample text]

[textarea name="variable_2" default="sample text"]

[radio name="variable_4" value="choice A|choice B|choice C"]

[checkbox name="variable_5" value="option A|option B|option C"]

[checklist name="variable_6" value="option A|option B|option C"]

[select name="variable_7" value="choice A|choice B|choice C"]

[var name="variable_1"]

[var name="variable_2"]

[var name="variable_4"]

[var name="variable_5"]

[var name="variable_6"]

[var name="variable_7"]