digraph {
    compound=true;
    Distraction [shape=box]
    Success [shape=box]

    LearningMaterial -> Knowledge [ label="describes" ]
    Teacher -> LearningMaterial [ label="explains" ]
    Distraction -> Attention [ label="breaks" ]
    World -> Knowledge [ label="challenges" ]
    Motivation -> Attention [ label="enables" ]
    Defensive -> Motivation [ label="type of",arrowtail=icurve ]
    Expansive -> Motivation [ label="type of",arrowtail=icurve ]
    Digitalization -> {Notifications SearchEngines} [ label="enables" ]
    Notifications -> Distraction [ label="causes" ]
    SearchEngines -> LearningMaterial [ label="finds" ]
    Knowledge -> World [ label="approximates" ]
    Need -> Defensive [ label="causes" ]
    Want -> Expansive  [ label="causes" ]
    Attention -> LearningDepth [ label="enables" ]
    LearningDepth -> Knowledge [ /*lhead=cluster1,*/label="decreases" ]
    Knowledge -> Success [ /*ltail=cluster1,*/label="determines" ]
    Success -> Goal [ label="accomplishes" ]
    University -> Expectations [ label="dictates" ]
    Teacher -> Expectations [ label="embodies" ]
    Expectations -> Need [ label="causes" ]
    Knowledge -> Action [ label="guides" ]
    Action -> World [ label="interacts with" ]
    Failure -> Knowledge [ label="disproves" ]
    Knowledge -> LearningMaterial [ ]

    /*
    subgraph cluster1 {
    node [style=filled]
    World; Knowledge;
    label = "Discrepancy"
    color=red
    }
    */
}