Is there any way to re-format a text file from

```
'n      n / [ ] / m / N        
'ns      @ s / @ z / @ / j @ z / j @ s        
'r      r        
's      s / z / [ ]    
...

```

to

```
'n      n 
'n      [ ] 
'n      m
'n      N        
'ns      @ s 
'ns      @ z 
'ns      @ 
'ns      j @ z 
'ns      j @ s        
'r      r        
's      s 
's      z 
's      [ ]    
...

```

That is to say, if we encounter `/`s in a line, this line would be split according to the positions of `/`s, while keeping the first column (there is always 6 spaces after first column).

I tried `tr / '\n' < filename1 > filename2` so the lines could be split like

```
'n      n 
 [ ] 
 m 
 N        
 'ns      @ s 
 @ z 
 @ 
 j @ z 
 j @ s        
 'r      r        
 's      s 
 z 
 [ ]  
...

```

but I couldn't keep the first column in the consecutive lines.