This is a more aggressive form of derivation generation. That is, return derivations of a derivation until there are no more, or until a cycle is detected.

When the -m flag is specified, the fact or rules that applied is reported along with the detail history of the mutations. The format are described as follows:

• |FACT|term for derivations|category|derivation|category|history|
• |RULE|term for derivations|derivation|match pattern|category|inflection|replace pattern|category|inflection|history|

1. The order of display derivations is different.
2. The mutation information is different when -m option is used.
3. The new version only displays derivations which are in Lvg.
4. With chossing detail options -d, all paths of derivations can be traced in the new version.

1. Generate derivations recursively until there are no more or a cycle is detected.

> lvg -f:R -m

medicine|medication|128|1|R|1|RULE|medic|medication|$|verb|base|ation$|noun|base|ddddd|NotNounAdj|
medicine|medic|128|1|R|1|RULE|medical|medic|al$|adj|base|$|noun|base|dd|NounAdj|
medicine|medically|2|1|R|1|RULE|medical|medically|$|adj|base|ly$|adv|base|dd|NotNounAdj|
medicine|medicinal|1|1|R|1|RULE|medicine|medicinal|e$|noun|base|al$|adj|base|d|NounAdj|
medicine|medicate|1024|1|R|1|RULE|medicable|medicate|able$|adj|base|ate$|verb|base|dddd|NotNounAdj|
medicine|medic|1024|1|R|1|RULE|medicable|medic|able$|adj|base|$|verb|base|dddd|NotNounAdj|
medicine|medicable|1|1|R|1|RULE|medic|medicable|$|noun|base|able$|adj|base|ddd|NounAdj|
medicine|medical|1|1|R|1|FACT|medicine|noun|medical|adj|d|NounAdj|

1. Generate derivations based on the input term.
2. Generate derivations based on the generated derivations, repeatly.
3. Check if the generated derivation is new, if so, add to output list.
4. The check is on term and categoryonly. Inflection of all derivation are set to be base (1).