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)*".