Letters that make presiding officer
s, o, d, e, f, g, n, p, c, r, i are letters that make 'presiding officer'
Words within presiding officer
ER, ice, ICE, siding, ding, RES, id, CER, re, si, PR, fice, IC, officer, ng, SI, off, ic, CE, in, din, office, ID, IN, Re, Ce, Es, Er, In, Pr, Si, resid are words within 'presiding officer'