Here's a short story:

The University of Melbourne (informally Melbourne University) is a public research university located in Melbourne, Australia. Founded in 1853, it is Australia's second oldest university and the oldest in Victoria. Times Higher Education ranks Melbourne as 33rd in the world, while the Academic Ranking of World Universities places Melbourne 40th in the world (both first in Australia). 

Melbourne's main campus is located in Parkville, an inner suburb north of the Melbourne central business district, with several other campuses located across Victoria. Melbourne is a sandstone university and a member of the Group of Eight, Universitas 21 and the Association of Pacific Rim Universities. Since 1872 various residential colleges have become affiliated with the university. There are 12 colleges located on the main campus and in nearby suburbs offering academic, sporting and cultural programs alongside accommodation for Melbourne students and faculty. 

Melbourne comprises 11 separate academic units and is associated with numerous institutes and research centres, including the Walter and Eliza Hall Institute of Medical Research, Florey Institute of Neuroscience and Mental Health, the Melbourne Institute of Applied Economic and Social Research and the Grattan Institute. Amongst Melbourne's 15 graduate schools the Melbourne Business School, the Melbourne Law School and the Melbourne Medical School are particularly well regarded. (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: What institution is in focus?
Guess: The University of Melbourn
Confidence: <appropriate level of confidence in this guess>

Question: When was it founded?
Guess: 1853
Confidence: <appropriate level of confidence in this guess>

Question: How many academic units does it have?
Guess: 11
Confidence: <appropriate level of confidence in this guess>

Question: Where is the main campus located?
Guess: Melbourne, Australia
Confidence: <appropriate level of confidence in this guess>

Question: If travelling from Melbourne, in which direction would you travel to get to it?
Guess: north
Confidence: <appropriate level of confidence in this guess>

Question: Where are there other campuses?
Guess: some across Victoria
Confidence: <appropriate level of confidence in this guess>

Question: What is the "age" of the institution there?
Guess: Since 1872, so 146
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: How many graduate institutions in Melbourne?

15