Renaming Sketch Grammar relations

CD to directory which contains the compiled corpus files.
```
cd `corpinfo -p mycorpus`
```

Create a file with a list of the names of the sketch grammar relations (each name on a separate line).
```
tr '\0' '\n' < `corpinfo -g WSBASE mycorpus`.lex > /tmp/mycorpus_sgrel_names
```

Edit the names of relations in the /tmp/mycorpus_sgrel_names file. Do not change the order of lines.

Backup the current names of sketch grammar relations.

mkdir ws-backup
mv `corpinfo -g WSBASE mycorpus`.lex* ws-backup

Compile the new names.

WSBASE=`corpinfo -g WSBASE mycorpus`
WSBASE_BASENAME=`basename $WSBASE`
encodevert -p /tmp/ -a $WSBASE_BASENAME - < /tmp/mycorpus_sgrel_names
mv /tmp/$WSBASE_BASENAME.lex* .