R1A1I1L1B3E1D2S1
11 points
RAILBEDS is validvalid
RAILBED, a layer of stone or gravel on which a railroad is laid [n]
RAILBED, the bed of a railway track [n]
RAILBED, a layer of stone or gravel on which a railroad is laid [n]
RAILBED, the bed of a railway track [n]