Better hiragane transcription in examples

[GoogleCodeExporter]

On examples screen, on long sentences the hiragana transcription gets a lot of 
space. Then you look at such long hiragana only sentence without any spaces you 
can't easyly determine where words starts or ends and it look like cipher. So 
ideal solution would be to show hiragana transcription when you tap on the 
concrete word. Furthermore lots of these examples use basic words that you 
already know.
For example you can look at such apps as:
https://play.google.com/store/apps/details?id=com.alexisblaze.japanese_grammar
https://play.google.com/store/apps/details?id=com.zyz.mobile

Original issue reported on code.google.com by kazufuku...@gmail.com on 25 Nov 2014 at 11:42