PUG: Radio Button

doctype
html(lang="en")
        head
        title Radio Button
        body
        form
        input(type="radio",name="gender",value="male",checked=true)
        label Male
        br
        input(type="radio",name="gender",value="female",checked=false)
        label Female
        br
        input(type="radio",name="gender",value="other",chacked=false)
        label Other