[word=Each] □ □ □
[word=Each] [□] □ □
[word=Each] □ □ □ □
Each box is handmade and no two are alike . Each grain is many times smaller than the width of a human hair , and carries a chemical record of nuclear reactions in its parent star . Each office is responsible for its district 's inspection of oil and gas wells , and Class II injection wells , and witness and supervise a wide variety of activities associated with the drilling , construction , operation , testing , temporary abandonment , and plugging of wells . Each PI is responsible for the evaluation of the performance of their instrument and for the initial analysis , interpretation , and publication of the data obtained by his or her instrument .