[ Lub-Hom-Phiaj ] teb: [ Ntawv-nyeem ] thiab: [ Ntawv-nyeem ]

var x := Lub-Hom-Phiaj tshiab.
x rau: ['teb:thiab:'] ua: { :a :b <- (a + b).
}.
Stdout sau-ntawv: (x abc: ['def']), tsum.
Stdout sau-ntawv: x a ['bc'], tsum.
abc:def
abc