Sentence -> Nounphrase Verbphrase 1
Nounphrase -> the boy .5
Nounphrase -> the girl .5
Verbphrase -> Verb Modlist Adverb 1
Verb -> runs .5
Verb -> walks .5
Modlist -> .2
Modlist -> very Modlist .8
Adverb -> quickly .3
Adverb -> slowly .4
