Using python+beautifulsoup, let's say I have a `<class 'bs4.element.Tag'>` object, `a`:

```
<div class="class1"><em>text1</em> text2</div>

```

I can use the following command to extract `text1 text2` and put it in `b`:

```
b = a.text

```

I can use the following command to extract `text1` and put it in `c`:

```
c = a.findAll("em")[0].text

```

But how can I extract just `text2`?