7 different plotlines

From time to time I've heard that there are only 7 different plotlines in writing and I just had to find out exactly what they were so here you go:

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[wo]man vs. nature
[wo]man vs. man
[wo]man vs. the environment
[wo]man vs. machines/technology
[wo]man vs. the supernatural
[wo]man vs. self
[wo]man vs. god/religion
 
Ronald Tobias, author of "Twenty Basic Plots" believes the following make for good stories: quest, adventure, pursuit, rescue, escape, revenge, riddle, rivalry, underdog, temptation, metamorphosis, transformation, maturation, love, forbidden love, sacrifice, discovery, wretched excess, ascension, and decision.

Overlap must be common under this theory. For example, "Rocky" is a story of the "underdog," who goes through a "transformation" and falls in "love" while on a "quest." We're not sure, but we think "Dude, Where's My Car?" touches on at least 16.

There are also claims made that there are seven basic needs to a story line.
1. A hero – the person through whose eyes we see the story unfold, set against a larger background.

2. The hero’s character flaw – a weakness or defense mechanism that hinders the hero in such a way as to render him/her incomplete.

3. Enabling circumstances – the surroundings the hero is in at the beginning of the story, which allow the hero to maintain his/her character flaw.

4. An opponent – someone who opposes the hero in getting or doing what he/she wants. Not always a villain. For example, in a romantic comedy, the opponent could be the man or woman whom the hero seeks romance with. The opponent is the person who instigates the life-changing event.

5. The hero’s ally – the person who spends the most time with the hero and who helps the hero overcome his/her character flaw.

6. The life-changing event – a challenge, threat or opportunity usually instigated by the opponent, which forces the hero to respond in some way that’s related to the hero’s flaw.

7. Jeopardy – the high stakes that the hero must risk to overcome his/her flaw. These are the dramatic events that lend excitement and challenge to the quest.

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