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Here's the stuff we found when you searched for "origins unclear"

origin
Origin of Species
Vampirella
Touching upon origins
Origin line
Origins
Extraordinary Origins of Everyday Things
On the Origin of Species by Means of Natural Selection
origin of modern English names
the origin of modern African American names
Peace sign
Flying by the seat of your pants
sleep tight
Straight from the horse's mouth
The origins of money and wealth
Body pleasure and the origins of violence
body pleasure and the origins of violence, part 2
body pleasure and the origins of violence, part 3
The Big Bang as the origin of matter
The origins of the American accent
JLA Secret Files and Origins #1
JLA Secret Files and Origins #2
Roman Origins of the Universe
The Origin of Consciousness in the Breakdown of the Bicameral Mind
Quantum Origins
The Mythological Origins of The Silmarillion and Unfinished Tales
year/major/origin
The origin of true love
super hero origins
Origins of Greek Currency
the origins of time measurement
The origin of popcorn
Origin of left and right
The Origins and History of Consciousness
Origin Systems
The origin of the Holy Ghost tradition
Kafka's "The Problem of Our Laws" and the origin of meaning
state of origin
Origins Awards
Origin of Tea
The Origin of Fairies
The origin of the water
Origin of Symmetry
Origin of Life
Origin of alphabet letters
The Origins Of Cinema--Volume 1
On the Origin of Species by Means of Natural Selection : Introduction
On the Origin of Species by Means of Natural Selection : Chapter I-A
On the Origin of Species by Means of Natural Selection : Chapter I-B
On the Origin of Species by Means of Natural Selection : Chapter I-C
On the Origin of Species by Means of Natural Selection : Chapter II
On the Origin of Species by Means of Natural Selection : Chapter III-A
On the Origin of Species by Means of Natural Selection : Chapter III-B
On the Origin of Species by Means of Natural Selection : Chapter IV-A
On the Origin of Species by Means of Natural Selection : Chapter IV-B
On the Origin of Species by Means of Natural Selection : Chapter IV-C
On the Origin of Species by Means of Natural Selection : Chapter V-A
On the Origin of Species by Means of Natural Selection : Chapter V-B
On the Origin of Species by Means of Natural Selection : Chapter V-C
On the Origin of Species by Means of Natural Selection : Chapter VI-A
On the Origin of Species by Means of Natural Selection : Chapter VI-B
On the Origin of Species by Means of Natural Selection : Chapter VI-C
On the Origin of Species by Means of Natural Selection : Chapter VII-A
On the Origin of Species by Means of Natural Selection : Chapter VII-B
On the Origin of Species by Means of Natural Selection : Chapter VII-C
On the Origin of Species by Means of Natural Selection : Chapter VIII-A
On the Origin of Species by Means of Natural Selection : Chapter VIII-B
On the Origin of Species by Means of Natural Selection : Chapter IX-A
On the Origin of Species by Means of Natural Selection : Chapter IX-B
On the Origin of Species by Means of Natural Selection : Chapter X-A
On the Origin of Species by Means of Natural Selection : Chapter X-B
On the Origin of Species by Means of Natural Selection : Chapter X-C
On the Origin of Species by Means of Natural Selection : Chapter XI-A
On the Origin of Species by Means of Natural Selection : Chapter XI-B
On the Origin of Species by Means of Natural Selection : Chapter XI-C
On the Origin of Species by Means of Natural Selection : Chapter XII-A
On the Origin of Species by Means of Natural Selection : Chapter XII-B
On the Origin of Species by Means of Natural Selection : Chapter XIII-A
On the Origin of Species by Means of Natural Selection : Chapter XIII-B
On the Origin of Species by Means of Natural Selection : Chapter XIII-C
On the Origin of Species by Means of Natural Selection : Chapter XIV-A
On the Origin of Species by Means of Natural Selection : Chapter XIV-B
CIA and the origin of Medellin Cartel: Part 1
CIA and the origin of Medellin Cartel: Part 2
Friedrich Nietzsche's "Origin of Christianity"
Origin (user)
Fever of Unknown Origin
Mythological origins of Richard Wagner's Ring Cycle
Origins of corporate America
The Origins of Bipedalism in the Family Hominidae
Origin of Moon ("Soft Red Sea" version)
The Origin of the Jewish Sects
Origins of European names
The mythical origins of America
origin server
Origins of Canadian province names
Wolverine : Origin
English words of Arabic origin
English words of Celtic origin
The Origin of Satan
English words of Japanese origin
Line with two origins
The Origins of the First World War
Final Fantasy Origins
English words of Indian origin
English words of Chinese origin
On the origin of the species construction
English words of Czech origin
English words of Polish origin
English words of Portuguese origin
Evolutionary Origins of Morality
The Origin of Machines
Origins of the Present Crisis
Hindu and Sufi Origins of Evil
Theories on the Origin and Nature of Language
The Origin of Love
English History: Origin of the Wars of the Roses
Suburban Warriors: The Origins of the New American Right
On the Origin of Genres
Ice Theory of The Origin of Life
A Skeptical Voice on the Origin of Flowers
F.E.A.R. 2: Project Origin
Superman: Secret Origin
The Origin of Speech
X-Men Origins: Wolverine
X-Men Origins: Deadpool
Roman origins of the synallagmatic contract
Dragon Age: Origins
The Pagan Origins of Christianity
The Origins of the Alternate Name of the Yamulke
Song of Ceber 1: Origin
The Origin And Deeds Of The Goths
English words of Swedish origin
A Quantum Theory of the Origin of Life
English words of Welsh origin
English words of American origin
The origin of the moon
The moon's origin
Valero, Leonella, and a Partial Zeph Origin Story
Blue Origin
we are the origin of all coming evil
English words of Aztecan origin
There is perhaps a sky; that part is unclear
unclear
Motives are unclear. Methods are incidental.

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