cpana gismu

x1 is upon/atop/resting on/lying on [the upper surface of] x2 in frame of reference/gravity x3.

(x1 may be object or event); See also se vasru, jbini, zvati, nenri, vreta, ckana, diklo, jibni, lamji, zutse, punji for lay upon, sarji, zbepi.

In notes:

ckana
x1 is a bed/pallet of material x2 for holding/supporting x3 (person/object/event).
diklo
x1 is local to x2; x1 is confined to locus x2 within range x3; x1 is regional
jbini
x1 is between/among set of points/bounds/limits x2 (set)/amidst mass x2 in property x3 (ka).
jibni
x1 is near/close to/approximates x2 in property/quantity x3 (ka/ni).
lamji
x1 is adjacent/beside/next to/in contact with x2 in property/sequence x3 in direction x4.
nenri
x1 is in/inside/within x2; x1 is on the inside/interior of x2 [totally within the bounds of x2].
punji
x1 (agent) puts/places/sets x2 on/at surface/locus x3.
sarji
x1 supports/holds up/is underpinning of/[helps] x2 against force/opposition x3 with/by means x4.
vasru
x1 contains/holds/encloses/includes contents x2 within; x1 is a vessel containing x2.
vreta
x1 lies/rests/reclines/reposes on x2; x1 is reclining/recumbent/lying on x2.
zbepi
x1 is a pedestal/base/stand/pallet supporting x2 (object/event), of materials/properties x3.
zutse
x1 sits [assumes sitting position] on surface x2.
zvati
x1 (object/event) is at/attending/present at x2 (event/location).
ga'u re'o (comp!)
location tense relation / direction; upon ...
cpanygau
g1 causes c1 to [rest on]/[be on top of]/[lie on] c2 in frame of reference c3.
ma'arcpana
cp1 is the top/the summit of mountain/hill/rise cp2=cm1.