Instrument / Mediator
Instrumental
Instrument
Means
With what or through what does it happen?
extended
intermediate
Scene core
Meaning
The tool, medium, body part, system, channel, or mediator used to perform or transmit the action.
How to spot it
Ask what tool or channel makes the action possible.
Examples
Words
knife|phone|car|email|hand
Phrases
with a knife|by email|through the app
Sentence
He cut the bread with a knife.
Visual guide
Basic shape
Actor │ uses ▼ Instrument / mediator │ makes possible ▼ Action He cut bread with a knife.
Compare shape
Same role, different shapes: with a knife (preposition) knife-CASE (case ending) by email (medium) through the app (channel) hand + cut (bare/compound) Ask: with/through what?
Language View
In your language
English (US default)
Presence
strong
Importance
English usually expresses instruments with prepositions, especially with.
She cut the bread with a knife.
with a knife = instrument
In learning language
Japanese
Presence
strong
Difficulty
Instruments and means are commonly marked by で.
ナイフでパンを切った。
I cut bread with a knife.
Typical learner issue
Learners may confuse で as instrument marker with で as location of action.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.