"_un" (r / s)
"sun"
"_ack" (s / b)
"sack"
"_ig" (p / d)
"dig"
"sa_" (t / d)
"sad"
"_ap" (c / g)
"gap"
"t_g" (o / a)
"tag"
"ta_" (p / b)
"tap"
"ma_" (t / p)
"mat"
"_ip" (s / t )
"sip"
"pi_" (m / n)
"pin"
"_ot" (p / c)
"cot"
"_an" (d / m)
"man"