Page 661 - Makino,Tsutusi.DictionaryOfIntermediateJGrammar

Note that the structures for c through k are identical. The only crucial
difference among them is the meaning of 'yam' depending on the mean-
ing of the direct object nouns.
(+ agerul; aged @B JG: 63-67))
2. Yam has the meaning of 'drink,' 'eat,' and 'smoke' but the usage is very
much restricted, as shown in (1).

(You shouldn't smoke here.)
c. ~~#$C~;SL>PYZ-XQ~~$ {&m~%b/*Fbl%b),
(Every morning I drink one cup of orange juice.)
Besides KS(F), Exs.(f) and (g), there are only a few expressions which
can be used correctly.
(2) a. Y8i~ 2 -++'(I 11 3 k>O
(Won't you drink with me tonight?)

b. pi ~~a>hitQF777;~t\,
(Please help yourself to the dishes.)

I. Yam can be replaced by sum in the cases of c, d, e, g, h and j of the
chart in Note 1. That is, sum lacks the meanings of 'send,' 'give,'
'learn' and 'eat 1 drink / smoke.' When yaru can be replaced by sum,
the difference between yaru and sum is a matter of style: the former is
more informal and colloquial.
[I] a. ?%, Y-X Q L %l?A.t~>~ (cf. KS(C))