Instruct: Retrieve semantically similar text.
Query: The 2015 City of Onkaparinga ATP Challenger was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Happy Valley, Australia between 3–11 January 2015.
The Onkaparinga Challenger, which was part of the 2015 ATP Tour, took place on the third through the eleventh of January.
The first step is to verify something
The event is happening on a weekday.
First failed in Taiwan
They are partaking in an agreement
Snapchats is used on a phone.
the thing mentioned is limp 
There was a immoderate mild demonstration.
two divisions were ready
it should be sooner
there was a response.
the tournament is nearly over 
The event is yet to happen.
The tournament was held at the beginning of the year.
Spots are available.
Wan Chai Sports Ground has been made by humans
There are multiple parties.
The tournament takes place in the first month.
The 2017 City of Onkaparinga ATP Challenger is a tennis tournament
There are rumors mentioned in the statement
there was a primordial explosion
The City of Onkaparinga ATP Challenger is an amateur tournament
The 2015 City of Onkaparinga ATP Challenger was played on rainy days.
The 2015 City of Onkaparinga ATP Challenger had 5 editions of the tournament.
The 2015 City of Onkaparinga ATP Challenger has many touchdowns