Ohcanbohtosat - chemical (engineer OR engineers)
Ozuin - chemical (engineer OR engineers) - eai gávdnon bohtosat.
Sáhtát oažžut lasi bohtosiid go hábmet iežat ohcama.
- Seđđon ohcamiin sáhttet gávdnot ohcanbohtosat, main leat seammasullasaš sánit: chemical (engineer OR engineers)~.
- Sánit AND, OR ja NOT sáhttet moivet ohcama; geahččal lasihit aisttonmearkkaid ohcansániid birra: "chemical (engineer OR engineers)".
- Joker-mearkkaid geavahemiin sáhtát gávdnat earálágán sátnehámiid: chemical (engineer OR engineers)*.