Thanks Tim, I understood the difference clearly would like to device an 
approach to utilize these concepts to prepare sequential event based timeline 
for the patients.
It would be helpful if you can point some useful links or suggest your thoughts.

Thanks &Regards
Stuti Awasthi

-----Original Message-----
From: Miller, Timothy [mailto:[email protected]] 
Sent: Wednesday, August 19, 2015 6:30 PM
To: [email protected]
Subject: Re: Meaning of "CONTAINS" TLink.. Is it equivalent to Overlap ?

Sounds like an awesome application!

CONTAINS is similar to OVERLAP but more specific. It means that one event is 
fully contained inside an event or time expression:

|--------- a -----------|
      |-----b-------|

specifically BEGIN(a) <= BEGIN(b)  AND END(a) >= END(b)

whereas OVERLAP is a broader category that just means there is some overlap:

|--------a----------|
    |-----------b-------|

is an example of an OVERLAP relation that is not contains.

Technically CONTAINS is a subset of OVERLAP, but it is one that is so useful 
and common that we keep it as its own category.

Tim


On 08/19/2015 04:53 AM, Stuti Awasthi wrote:
> Hi All,
>
> I am a newbee in ctakes so please pardon my ignorance.
> I am trying to extract temporal relation between Events-Events and 
> Events-Time. For this I am using cTakes Temporal module via api's.  Once I 
> get the temporal relation, I would like to put them in sequence order to 
> understand patients medical history.
>
> Now issue is for most of the relationship(Tlink) between Evenet-Event 
> and Event-Time, I receive a category  "Contains". In most of the 
> ctakes related papers, I read that TLInk belongs to "Before, 
> Aftre,Overlap" so what does this "contains" means and how I can 
> utilize this to build user's sequential timeline
>
> Eg: 
> The MRI scan on admission revealed an impending cord compression at the level 
> of T10. 
>
> ################ EventEventRelation Annotation Output ###############
> EVENT(DocTime) | Relationship Category | Event(Doctime) 
> scan ( BEFORE )  | CONTAINS             | revealed ( BEFORE ) 
> scan ( BEFORE )  | CONTAINS             | compression ( BEFORE ) 
>
> Please suggest.
>
> Thanks &Regards
> Stuti Awasthi
>
>
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