◎◎◎ astrobiology ⪢⪢
as it's easy to imagine
http://qindex.info/i.php?x=15701
 easy ⪢⪢
http://qindex.info/i.php?x=21578
○○○ scaly ⪢⪢
Scaly and slithery, long and legless, snakes are easy to recognize. → scale
http://qindex.info/i.php?x=15458
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