| http://www.w3.org/ns/prov#value | - The stroller of claim 4, wherein said positioning base includes elongated left and right base rods, each of which extends in a transverse direction relative to said backrest rods and each of which has a rear end pivoted to said leg unit, and a front end section that is formed with an elongated slot extending in said transverse direction, said pushing unit including a pair of pushing studs, each of
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