
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The length of the shortest trip from $A$ to $B$ along the edges of a tetrahedron shown is the length of 2 edges. How many different 2-edge trips are there from $A$ to $B$?

[asy]

size(4cm,4cm);

pair a1, b1, c1, d1;

a1=(1,1);
b1=(0,1);
c1=(0.5,1.6);
d1=(1,0);

draw(a1--b1--c1--a1);
draw(a1--d1--b1);
draw(d1--c1);

label("$A$",d1,SW);
label("$B$",c1,NE);

[/asy]

Present the answer in LaTex format: \boxed{Your answer}
user