node-red/nodes/core/analysis/72-sentiment.html

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    <p>Analyses the chosen property, default <code>payload</code>, and adds a <code>sentiment</code> object.</p>
    <h3>Outputs</h3>
    <dl class="message-properties">
        <dt>sentiment <span class="property-type">object</span></dt>
        <dd>contains the resulting AFINN-111 sentiment.</dd>
        <dt>sentiment.score <span class="property-type">number</span></dt>
        <dd>the sentiment score.</dd>
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    <h3>Inputs</h3>
    <dl class="message-properties">
        <dt>overrides <span class="property-type">object</span></dt>
        <dd>an object of word score overrides can be supplied - <code>{ word:score,... }</code>.</dd>
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    <h3>Details</h3>
    <p>A score greater than zero is positive and less than zero is negative.</p>
    <p>The score typically ranges from -5 to +5, but can go higher and lower.</p>
    <p>See <a href="https://github.com/thisandagain/sentiment/blob/master/README.md" target="_blank">the Sentiment docs here</a>.</p>
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