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What does ‘S/A’ mean in SMARTS pattern when using Chemicalize to draw the chemical structure?

The ‘S/A’ here is not the part of SMARTS annotation, rather Marvin's query descriptor. Yes, according to Chemaxon docs — Features exported to CDX, ‘S/A’ refers to “single or aromatic query bond type”.
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What does ‘(A)’ mean in SMARTS pattern when using Chemicalize to draw the chemical structure?

According to Daylight Chemical Information Systems — SMARTS Theory Manual and Chemaxon docs — SMARTS, the capital letter ‘A’ in SMARTS notation is a label for an aliphatic primitive (atom). Chemaxon’s ...
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