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```
my $x = 5 if $t;
```
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```
my $x; $x = 5 if $t;
```
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```
my $x = 5;
```
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my $x;
$x = 5;
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```
STATEMENT if condition;
```

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STATEMENT1;
STATEMENT2;
...
STATEMENTn if condition;  # ?!?

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```
STATEMENT if condition;
```
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```
if (condition) { STATEMENT }
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```
if ($t) { my $x = 5 }
```