Render individual word.

        text (unicode): Word text.
        tag (unicode): Part-of-speech tag.
        i (int): Unique ID, typically word index.
        RETURNS (unicode): Rendered SVG markup.

def render_word(self, text, tag, i):
        """Render individual word.

        text (unicode): Word text.
        tag (unicode): Part-of-speech tag.
        i (int): Unique ID, typically word index.
        RETURNS (unicode): Rendered SVG markup.
        """
        y = self.offset_y + self.word_spacing
        x = self.offset_x + i * self.distance
        if self.direction == "rtl":
            x = self.width - x
        html_text = escape_html(text)
        return TPL_DEP_WORDS.format(text=html_text, tag=tag, x=x, y=y)