The reading and the lecture are about a Steller's sea cow. The reading states that there are three possible hypothesizes to explain the cause behind the extinction of these creatures and provides three reasons of support. However, the lecturer explains that there is no clear cause of this extinction and refutes each of the reading thesis.
First of all, the reading claims that these animals might be overhunted by the residents in Siberian to feed on them. However, the professor opposes this idea by explaining that these animals are massive and people did not need a lot of them as a food source. He clarifies that one of Steller's sea cow could weigh about ten tons so, it is not likely the hunt would be the cause of extinction.
Secondly, the reading mentions that the marine environment could be changed at that time, hence, the food for these creatures could be declined. However, the professor counters this point by pointing out that if that changes happened, it would have an effect on other species like whales. According to the professor, the whales did not decrease in number at all in that period.
Thirdly, the article says that the European traders with their guns could kill a huge number of these animals. However, the lecturer posits this point by saying that the number of these populations had already decreased before the traders came to the island. So they would not have a responsibility for the extinction.
Transition Words or Phrases used:
first, hence, however, if, second, secondly, so, third, thirdly, first of all
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 9.0 5.04856512141 178% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 29.0 22.412803532 129% => Less pronouns wanted
Preposition: 32.0 30.3222958057 106% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1191.0 1373.03311258 87% => OK
No of words: 245.0 270.72406181 90% => More content wanted.
Chars per words: 4.8612244898 5.08290768461 96% => OK
Fourth root words length: 3.95632099841 4.04702891845 98% => OK
Word Length SD: 2.50017908563 2.5805825403 97% => OK
Unique words: 133.0 145.348785872 92% => More unique words wanted.
Unique words percentage: 0.542857142857 0.540411800872 100% => OK
syllable_count: 362.7 419.366225166 86% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 3.25607064018 92% => OK
Article: 11.0 8.23620309051 134% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 32.8756073032 49.2860985944 67% => OK
Chars per sentence: 99.25 110.228320801 90% => OK
Words per sentence: 20.4166666667 21.698381199 94% => OK
Discourse Markers: 6.41666666667 7.06452816374 91% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 2.0 4.45695364238 45% => More negative sentences wanted.
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.259576248904 0.272083759551 95% => OK
Sentence topic coherence: 0.10164002142 0.0996497079465 102% => OK
Sentence topic coherence SD: 0.0786052085395 0.0662205650399 119% => OK
Paragraph topic coherence: 0.154406184479 0.162205337803 95% => OK
Paragraph topic coherence SD: 0.0519773190462 0.0443174109184 117% => OK
Essay readability:
automated_readability_index: 11.7 13.3589403974 88% => Automated_readability_index is low.
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 10.91 12.2367328918 89% => OK
dale_chall_readability_score: 7.98 8.42419426049 95% => OK
difficult_words: 52.0 63.6247240618 82% => More difficult words wanted.
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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Rates: 76.6666666667 out of 100
Scores by essay e-grader: 23.0 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.