[twitter-dev] conversation chain

[pallabi]

is this possible in any way that one twitter conversation will contain
only one tweet ? I am trying to show the twitter conversation chain in
my application. but sometimes it happens that the conversation chain
contains only one tweet. Now my understanding is that if a
conversation contains only one tweet, then how could it be a
conversation . Is this any bug of my application or twitter sometimes
returns the conversation chain in this way ?