Zhongyuan Zheng
Prof. West
English 201C
10 Oct 2018

1. People in military have military styles.
   Watson has military styles.
   $\therefore$ Watson served in military.
   P1: Acceptable - Commone Sense
   P2: Acceptable - Fact from Movie
   Conclusion:
   (1) Invalid - People who are not in military can also have military styles.
   (2) Unsound

2. People who have a psychosomatic limp would have a therapist.
   Watson has a psychosomatic limp.
   $\therefore$ Watson has a therapist.
   P1: Unacceptable - Not all people who have a psychosomatic limp also have a therapist.
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Invalid
   (2) Unsound

3. Left-handed people write with left hand and may scratch their finger nails of left hand.
   The finger nails of the left hand of the pink lady were scratched.
   $\therefore$ The pink lady was left-handed.
   P1: Acceptable
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Invalid - Right-handed people can also scratch their finger nails of left-hand.
   (2) Unsound

4. Professional person who works in the media industry usually wears clothes of alarming color.
   The lady wore a coat of pink shade, which is frankly alarming.
   $\therefore$ The lady was a professional in media industry.
   P1: Acceptable
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Invalid - People not in media industry can also wear clothes of alarming color.
   (2) Unsound

5. Germans write german words.
   The lady wrote a german word before she died.
   $\therefore$ The lady is from Germany.
   P1: Acceptable
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Invalid - The lady can be non-german and still be able to write german words.
   (2) Unsound

6. A wedding ring has an inner surface shiner than the outer surface is regularly removed, because it get polished when it’s removed.
   The wedding ring of the pink lady has an shiner inner surface.
   $\therefore$ The pink lady regularly removed her wedding ring.
   P1: Acceptable
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Valid
   (2) Sound

7. Married people who regularly remove their wedding rings have an affair.
   The pink lady regularly removed her wedding ring.
   $\therefore$ The pink lady is having an affair.
   P1: Unacceptable - They may remove their rings due to other reasons, such as work.
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Invalid
   (2) Unsound

8. People who travel from Cardiff to London have wet coats, because it rains in Cardiff, and it has no rain in London.
   The pink lady who died in London had a wet coat.
   $\therefore$ The pink lady travelled from Cardiff to London.
   P1: Acceptable
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Invalid - The pink lady may also travel from other area where it also rained to London.
   (2) Unsound

9. People who drag a small suitcase in a rainy day have tiny splash marks on their right heel and calf.
   The pink lady has tiny splash marks on her right heel and calf.
   $\therefore$ The pink lady had a suitcase and dragged it in a rainy day.
   P1: Acceptable
   P2: Acceptable - Fact from movie
   Conclusion:
   (1) Valid
   (2) Sound

10. People who murder the pink lady would have her suitcase.
    Sherlock has the suitcase.
    $\therefore$ Sherlock is the murderer.
    P1: Unacceptable - The suitcase may be dumped and picked up by others.
    P2: Acceptable - Fact from movie
    Conclusion:
    (1) Invalid - Sherlock just found the suitcase somewhere.
    (2) Unsound