Do you know these words?

• おこなう

  to do ; to perform (e.g. an experiment) ; to hold or to have (e.g. examination, match or service) ; to conduct (e.g. survey, research, investigation)

• げっけい

  menstruation ; period

• えいぎょうちゅう

  in service

• じかくしょうじょう

  subjective symptom

• ぐうぐう（ねる）

  to be fast asleep