unmanned space missions vs manned space missions

Grammar and spelling errors:
Line 1, column 470, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'authors'' or 'author's'?
Suggestion: authors'; author's
... provides little tenable support to the authors supposition. The author made many assum...
^^^^^^^
Line 3, column 193, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...nd costly he meant 20%-30% of danger and 40% costlier than unmanned missions, the...
^^
Line 3, column 241, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'authors'' or 'author's'?
Suggestion: authors'; author's
...stlier than unmanned missions, then the authors conclusion is valid. But if it means 0....
^^^^^^^
Line 5, column 415, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: Thus
... to the complete failure of the program.Thus, all the money spent on the program wil...
^^^^
Line 7, column 311, Rule ID: A_INFINITVE[1]
Message: Probably a wrong construction: a/the + infinitive
... missions can. So, it would be wise not the send humans in space and risk their lives. B...
^^^^^^^^

Transition Words or Phrases used:
but, first, furthermore, if, lastly, so, then, thus, well, in fact, first of all, to sum up

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

Performance on Part of Speech:
To be verbs : 18.0 19.6327345309 92% => OK
Auxiliary verbs: 15.0 12.9520958084 116% => OK
Conjunction : 20.0 11.1786427146 179% => OK
Relative clauses : 10.0 13.6137724551 73% => More relative clauses wanted.
Pronoun: 29.0 28.8173652695 101% => OK
Preposition: 47.0 55.5748502994 85% => OK
Nominalization: 10.0 16.3942115768 61% => OK

Performance on vocabulary words:
No of characters: 2104.0 2260.96107784 93% => OK
No of words: 408.0 441.139720559 92% => More content wanted.
Chars per words: 5.1568627451 5.12650576532 101% => OK
Fourth root words length: 4.49433085973 4.56307096286 98% => OK
Word Length SD: 2.70726733524 2.78398813304 97% => OK
Unique words: 195.0 204.123752495 96% => OK
Unique words percentage: 0.477941176471 0.468620217663 102% => OK
syllable_count: 633.6 705.55239521 90% => OK
avg_syllables_per_word: 1.6 1.59920159681 100% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 4.96107784431 81% => OK
Article: 11.0 8.76447105788 126% => OK
Subordination: 1.0 2.70958083832 37% => OK
Conjunction: 3.0 1.67365269461 179% => OK
Preposition: 5.0 4.22255489022 118% => OK

Performance on sentences:
How many sentences: 20.0 19.7664670659 101% => OK
Sentence length: 20.0 22.8473053892 88% => OK
Sentence length SD: 46.8617914724 57.8364921388 81% => OK
Chars per sentence: 105.2 119.503703932 88% => OK
Words per sentence: 20.4 23.324526521 87% => OK
Discourse Markers: 4.55 5.70786347227 80% => OK
Paragraphs: 5.0 5.15768463074 97% => OK
Language errors: 5.0 5.25449101796 95% => OK
Sentences with positive sentiment : 9.0 8.20758483034 110% => OK
Sentences with negative sentiment : 9.0 6.88822355289 131% => OK
Sentences with neutral sentiment: 2.0 4.67664670659 43% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.0 0.218282227539 0% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0 0.0743258471296 0% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0 0.0701772020484 0% => Sentences are similar to each other.
Paragraph topic coherence: 0.0 0.128457276422 0% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0 0.0628817314937 0% => 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: 13.1 14.3799401198 91% => Automated_readability_index is low.
flesch_reading_ease: 51.18 48.3550499002 106% => OK
smog_index: 3.1 7.1628742515 43% => Smog_index is low.
flesch_kincaid_grade: 11.1 12.197005988 91% => OK
coleman_liau_index: 12.65 12.5979740519 100% => OK
dale_chall_readability_score: 8.23 8.32208582834 99% => OK
difficult_words: 93.0 98.500998004 94% => OK
linsear_write_formula: 8.0 12.3882235529 65% => OK
gunning_fog: 10.0 11.1389221557 90% => OK
text_standard: 13.0 11.9071856287 109% => OK
What are above readability scores?

---------------------
It is not exactly right on the topic in the view of e-grader. Maybe there is a wrong essay topic.

Rates: 16.67 out of 100
Scores by essay e-grader: 1.0 Out of 6
---------------------
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.

Attribute Value Ideal
Final score: 3.5 out of 6
Category: Satisfactory Excellent
No. of Grammatical Errors: 5 2
No. of Spelling Errors: 9 2
No. of Sentences: 20 15
No. of Words: 409 350
No. of Characters: 2036 1500
No. of Different Words: 186 200
Fourth Root of Number of Words: 4.497 4.7
Average Word Length: 4.978 4.6
Word Length SD: 2.597 2.4
No. of Words greater than 5 chars: 163 100
No. of Words greater than 6 chars: 110 80
No. of Words greater than 7 chars: 78 40
No. of Words greater than 8 chars: 38 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 20.45 21.0
Sentence Length SD: 8.399 7.5
Use of Discourse Markers (%): 0.65 0.12
Sentence-Text Coherence: 0.345 0.35
Sentence-Para Coherence: 0.543 0.50
Sentence-Sentence Coherence: 0.112 0.07
Number of Paragraphs: 5 5