Display snippets from search and word frequencies

[petermr]

The file:<cproject>/search.elements.snippets.xml
contains keywords in contact.
Example...

 <snippetsTree>
  <snippets file="liion/PMC3463005/results/search/elements/results.xml">
   <result pre="Nanosheets with Nearly 100% Exposed (001) Facets for Fast Reversible" exact="Lithium" post="Storage . J. Am. Chem. Soc. 132, 6124– 6130"/>
   <result pre=", Scrosati B. &amp;amp; Tarascon J. M. Nanomaterials for Rechargeable" exact="Lithium" post="Batteries. Angew. Chem. Int. Ed. 47, 2930– 2946 ("/>
   <result pre="Y. et al. Phase Transition between Nanostructures of Titanate and" exact="Titanium" post="Dioxides via Simple Wet-Chemical Reactions . J. Am. Chem."/>
   <result pre="H. et al. Sandwich-Like, Stacked Ultrathin Titanate Nanosheets for Ultrafast" exact="Lithium" post="Storage. Adv. Mater. 23, 998– 1002 ( 2011). 21341313"/>
   <result pre="W. Carbon-Supported Ultra-Thin Anatase TiO 2 Nanosheets for Fast Reversible" exact="Lithium" post="Storage . J. Mater. Chem. 21, 5687– 5692 ("/>
   <result pre="4327 ( 2007). 17362005 Chen X. &amp;amp; Mao S. S." exact="Titanium" post="Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications. 
...
This shows the sentences in which the terms occur in the form:

```
reading the text in order and removing the markup returns the original text , e.g.
```
   
```
reads directly as:
```
   H. et al. Sandwich-Like, Stacked Ultrathin Titanate Nanosheets for Ultrafast Lithium Storage. Adv. Mater. 23, 998– 1002 ( 2011). 21341313
```
The sentence is often truncated to 200 characters because the pubklishers threaten legal action if there is more (of course this isn't for CC BY articles).