{ { { 5 } { 42 } } } [ { 5 42 } { { } } >array ] unit-test { { "am" "an" "bm" "bn" "cm" "cn" } } [ "abc" "mn" { "" } >array ] unit-test { { "amx" "amy" "amz" "anx" "any" "anz" "aox" "aoy" "aoz" "bmx" "bmy" "bmz" "bnx" "bny" "bnz" "box" "boy" "boz" "cmx" "cmy" "cmz" "cnx" "cny" "cnz" "cox" "coy" "coz" } } [ "abc" "mno" "xyz" { "" } >array ] unit-test { { "amx" "amy" "amz" "anx" "any" "anz" "aox" "aoy" "aoz" "bmx" "bmy" "bmz" "bnx" "bny" "bnz" "box" "boy" "boz" "cmx" "cmy" "cmz" "cnx" "cny" "cnz" "cox" "coy" "coz" } } [ { "abc" "mno" "xyz" } n >array [ >string ] map ] unit-test