fluoride addition to drinking water

Grammar and spelling errors:
Line 5, column 130, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... such as the center for disease control, have concluded that fluoride guard again...
^^
Line 13, column 472, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...iffness, pain and brittle bone structure
^^^^^^^^

Transition Words or Phrases used:
actually, however, if, lastly, moreover, nevertheless, second, secondly, so, well, in contrast, kind of, such as, as a result, to begin with, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 42.0 30.3222958057 139% => OK
Nominalization: 8.0 5.01324503311 160% => OK

Performance on vocabulary words:
No of characters: 1772.0 1373.03311258 129% => OK
No of words: 318.0 270.72406181 117% => OK
Chars per words: 5.57232704403 5.08290768461 110% => OK
Fourth root words length: 4.22286093782 4.04702891845 104% => OK
Word Length SD: 2.85800619984 2.5805825403 111% => OK
Unique words: 194.0 145.348785872 133% => OK
Unique words percentage: 0.610062893082 0.540411800872 113% => OK
syllable_count: 541.8 419.366225166 129% => OK
avg_syllables_per_word: 1.7 1.55342163355 109% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 5.0 2.5761589404 194% => OK

Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 22.0 21.2450331126 104% => OK
Sentence length SD: 49.4770612692 49.2860985944 100% => OK
Chars per sentence: 126.571428571 110.228320801 115% => OK
Words per sentence: 22.7142857143 21.698381199 105% => OK
Discourse Markers: 11.3571428571 7.06452816374 161% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 9.0 4.45695364238 202% => Less negative sentences wanted.
Sentences with neutral sentiment: 1.0 4.27373068433 23% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.383673036406 0.272083759551 141% => OK
Sentence topic coherence: 0.120399994686 0.0996497079465 121% => OK
Sentence topic coherence SD: 0.1017875564 0.0662205650399 154% => OK
Paragraph topic coherence: 0.215233490566 0.162205337803 133% => OK
Paragraph topic coherence SD: 0.0794935123417 0.0443174109184 179% => OK

Essay readability:
automated_readability_index: 16.2 13.3589403974 121% => OK
flesch_reading_ease: 40.69 53.8541721854 76% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 13.1 11.0289183223 119% => OK
coleman_liau_index: 15.32 12.2367328918 125% => OK
dale_chall_readability_score: 10.14 8.42419426049 120% => OK
difficult_words: 109.0 63.6247240618 171% => OK
linsear_write_formula: 8.5 10.7273730684 79% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?

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Rates: 90.0 out of 100
Scores by essay e-grader: 27.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.