Instruct: Retrieve semantically similar text.
Query: The new study refutes earlier findings by researchers at the University of California, Los Angeles, who concluded that the odds of getting head and neck cancers rose in tandem with the frequency and duration of marijuana use.
there was prior findings
It is different from last year
The original statement is about marijuana
This is not the first time was caught
There is an issue.
this is one of several cases to be made
There is a decision that must be made
there have been restrictions. 
The study had no conclusion. 
An investigation was conducted
this is not a tense situation
Cocaine has a warning label
The situation is fluid
At least one concern has been raised.
There was an issue being investigated
There have been multiple losses
There's still a lot of uncertainty
a decision has been made on the subject
The article is about marijuana
A lot of people dont agree with it
There is one country that does not agree
Citizens do not agree with this
The study had no conclusion. 
The new study found no issues with earlier findings.
Marijuana definitely causes cancer