The diagram below shows the development of cutting tools in the Stone Age.
The picture below illustrates the evolution of the tools, which were made by stone and used for cutting, in the Stone Age, in 1.4 million and 0.8 million years ago.
Overall, it is clear that tool B was bigger and even sharper than tool A. Both tools were shown and compared in three different views.
Looking at the front view, tool A was length about eight centimeters and was rougher with the deformation of its peripheral. By contrast, tool B, which looked like the number of smaller stones combined, was longer nearly three centimeters than the first one and had the shape like dropping water.
In the side view, while the tool A tended to be roughed and had the form like an animal tooth, tool B was smoother, sharper and looked like a stick. Looking at the back view, tool B was bigger and sharper and had the shape like an ax while tool A was harsher and did not have clear form.
Grammar and spelling errors:
Line 3, column 298, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... and had the shape like dropping water. In the side view, while the tool A tende...
^^^^^
Line 4, column 289, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...as harsher and did not have clear form.
^^
Transition Words or Phrases used:
first, if, look, while
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 7.0 157% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 11.0 6.8 162% => OK
Relative clauses : 3.0 3.15609756098 95% => OK
Pronoun: 3.0 5.60731707317 54% => OK
Preposition: 20.0 33.7804878049 59% => More preposition wanted.
Nominalization: 2.0 3.97073170732 50% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 727.0 965.302439024 75% => OK
No of words: 164.0 196.424390244 83% => More content wanted.
Chars per words: 4.43292682927 4.92477711251 90% => OK
Fourth root words length: 3.57858190836 3.73543355544 96% => OK
Word Length SD: 2.19372414845 2.65546596893 83% => OK
Unique words: 92.0 106.607317073 86% => More unique words wanted.
Unique words percentage: 0.560975609756 0.547539520022 102% => OK
syllable_count: 212.4 283.868780488 75% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 1.53170731707 65% => OK
Article: 1.0 4.33902439024 23% => OK
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 4.0 3.36585365854 119% => OK
Performance on sentences:
How many sentences: 7.0 8.94146341463 78% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 23.0 22.4926829268 102% => OK
Sentence length SD: 40.113614158 43.030603864 93% => OK
Chars per sentence: 103.857142857 112.824112599 92% => OK
Words per sentence: 23.4285714286 22.9334400587 102% => OK
Discourse Markers: 3.14285714286 5.23603664747 60% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 2.0 1.69756097561 118% => OK
Sentences with positive sentiment : 3.0 3.70975609756 81% => OK
Sentences with negative sentiment : 2.0 1.13902439024 176% => OK
Sentences with neutral sentiment: 2.0 4.09268292683 49% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.177515506354 0.215688989381 82% => OK
Sentence topic coherence: 0.0931224629065 0.103423049105 90% => OK
Sentence topic coherence SD: 0.0421824888502 0.0843802449381 50% => Sentences are similar to each other.
Paragraph topic coherence: 0.119900935721 0.15604864568 77% => OK
Paragraph topic coherence SD: 0.0400647683727 0.0819641961636 49% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 11.2 13.2329268293 85% => Automated_readability_index is low.
flesch_reading_ease: 73.51 61.2550243902 120% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 8.7 10.3012195122 84% => OK
coleman_liau_index: 8.71 11.4140731707 76% => OK
dale_chall_readability_score: 7.09 8.06136585366 88% => OK
difficult_words: 24.0 40.7170731707 59% => More difficult words wanted.
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 11.2 10.9970731707 102% => OK
text_standard: 11.0 11.0658536585 99% => OK
What are above readability scores?
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Rates: 61.797752809 out of 100
Scores by essay e-grader: 5.5 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.