Locational prepositions behind, in back of, and in front of;
difficulty with above, below, and at the bottom of; kinship terms mother, father, sister, and brother
(last two are nonreciprocating)
60
Temporal terms before and after
60+
Additional locational prepositions in temporal expressions, such as in a week; most major kinship terms by age ten; more precise locational directives
reference the body (left and right)