Placówkowo - breadcrumbs rich snippet

<script type='application/ld+json'>
{
	"@context": "http://schema.org",
	"@type": "BreadcrumbList",
	"itemListElement": [
		{
		"@type": "ListItem",
		"position": "1",
		"name": "Placówkowo",
		"item": "https://placowkowo.pl/"
	},
		{
		"@type": "ListItem",
		"position": "2",
		"name": "Przedszkole",
		"item": "https://placowkowo.pl/przedszkole/"
	},
        {
        "@type": "ListItem",
        "position": "3",
        "name": "Przedszkole @post(taxonomy-13.name)",
        "item": "@post(taxonomy-13.link)"
    },
		{
		"@type": "ListItem",
		"position": "4",
		"name": "@post(:title)",
		"item": "@post(:url)"
	}
	]
}
</script>