The diagram below shows the development of cutting tools in the Stone Age

Grammar and spelling errors:
Line 1, column 76, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ment of cutting tools in the Stone Age.   The illustration depicts the evolution o...
^^^^^

Transition Words or Phrases used:
first, furthermore, however, if, second, secondly, thus, first of all

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

Performance on Part of Speech:
To be verbs : 7.0 7.0 100% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 9.0 6.8 132% => OK
Relative clauses : 3.0 3.15609756098 95% => OK
Pronoun: 7.0 5.60731707317 125% => Less pronouns wanted
Preposition: 25.0 33.7804878049 74% => OK
Nominalization: 4.0 3.97073170732 101% => OK

Performance on vocabulary words:
No of characters: 1077.0 965.302439024 112% => OK
No of words: 217.0 196.424390244 110% => OK
Chars per words: 4.96313364055 4.92477711251 101% => OK
Fourth root words length: 3.8380880478 3.73543355544 103% => OK
Word Length SD: 2.59608612935 2.65546596893 98% => OK
Unique words: 135.0 106.607317073 127% => OK
Unique words percentage: 0.622119815668 0.547539520022 114% => OK
syllable_count: 320.4 283.868780488 113% => OK
avg_syllables_per_word: 1.5 1.45097560976 103% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 1.53170731707 261% => Less pronouns wanted as sentence beginning.
Article: 4.0 4.33902439024 92% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 2.0 3.36585365854 59% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 11.0 8.94146341463 123% => OK
Sentence length: 19.0 22.4926829268 84% => The Avg. Sentence Length is relatively short.
Sentence length SD: 38.4845144342 43.030603864 89% => OK
Chars per sentence: 97.9090909091 112.824112599 87% => OK
Words per sentence: 19.7272727273 22.9334400587 86% => OK
Discourse Markers: 6.27272727273 5.23603664747 120% => OK
Paragraphs: 5.0 3.83414634146 130% => Less paragraphs wanted.
Language errors: 1.0 1.69756097561 59% => OK
Sentences with positive sentiment : 4.0 3.70975609756 108% => OK
Sentences with negative sentiment : 4.0 1.13902439024 351% => Less negative sentences wanted.
Sentences with neutral sentiment: 3.0 4.09268292683 73% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.410682248483 0.215688989381 190% => OK
Sentence topic coherence: 0.180746911051 0.103423049105 175% => OK
Sentence topic coherence SD: 0.267167829496 0.0843802449381 317% => The coherence between sentences is low.
Paragraph topic coherence: 0.328122822337 0.15604864568 210% => OK
Paragraph topic coherence SD: 0.337617198935 0.0819641961636 412% => More connections among paragraphs wanted.

Essay readability:
automated_readability_index: 11.8 13.2329268293 89% => Automated_readability_index is low.
flesch_reading_ease: 60.65 61.2550243902 99% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 9.5 10.3012195122 92% => OK
coleman_liau_index: 11.49 11.4140731707 101% => OK
dale_chall_readability_score: 8.29 8.06136585366 103% => OK
difficult_words: 51.0 40.7170731707 125% => OK
linsear_write_formula: 11.5 11.4329268293 101% => OK
gunning_fog: 9.6 10.9970731707 87% => OK
text_standard: 12.0 11.0658536585 108% => OK
What are above readability scores?

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Maximum four paragraphs wanted.

Rates: 78.6516853933 out of 100
Scores by essay e-grader: 7.0 Out of 9
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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.